ceph/src/civetweb/src/third_party/duktape-1.5.2/src-noline/duk_config.h

   1 /*
   2  *  duk_config.h configuration header generated by genconfig.py.
   3  *
   4  *  Git commit: cad34ae155acb0846545ca6bf2d29f9463b22bbb
   5  *  Git describe: v1.5.2
   6  *  Git branch: HEAD
   7  *
   8  *  Supported platforms:
   9  *      - Mac OSX, iPhone, Darwin
  10  *      - OpenBSD
  11  *      - Generic BSD
  12  *      - Atari ST TOS
  13  *      - AmigaOS
  14  *      - Windows
  15  *      - Flashplayer (Crossbridge)
  16  *      - QNX
  17  *      - TI-Nspire
  18  *      - Emscripten
  19  *      - Linux
  20  *      - Solaris
  21  *      - Generic POSIX
  22  *      - Cygwin
  23  *      - Generic UNIX
  24  *      - Generic fallback
  25  *
  26  *  Supported architectures:
  27  *      - x86
  28  *      - x64
  29  *      - x32
  30  *      - ARM 32-bit
  31  *      - ARM 64-bit
  32  *      - MIPS 32-bit
  33  *      - MIPS 64-bit
  34  *      - PowerPC 32-bit
  35  *      - PowerPC 64-bit
  36  *      - SPARC 32-bit
  37  *      - SPARC 64-bit
  38  *      - SuperH
  39  *      - Motorola 68k
  40  *      - Emscripten
  41  *      - Generic
  42  *
  43  *  Supported compilers:
  44  *      - Clang
  45  *      - GCC
  46  *      - MSVC
  47  *      - Emscripten
  48  *      - TinyC
  49  *      - VBCC
  50  *      - Bruce's C compiler
  51  *      - Generic
  52  *
  53  */
  54
  55 #if !defined(DUK_CONFIG_H_INCLUDED)
  56 #define DUK_CONFIG_H_INCLUDED
  57
  58 /*
  59  *  Intermediate helper defines
  60  */
  61
  62 /* DLL build detection */
  63 #if defined(DUK_OPT_DLL_BUILD)
  64 #define DUK_F_DLL_BUILD
  65 #elif defined(DUK_OPT_NO_DLL_BUILD)
  66 #undef DUK_F_DLL_BUILD
  67 #else
  68 /* not configured for DLL build */
  69 #undef DUK_F_DLL_BUILD
  70 #endif
  71
  72 /* Apple OSX, iOS */
  73 #if defined(__APPLE__)
  74 #define DUK_F_APPLE
  75 #endif
  76
  77 /* OpenBSD */
  78 #if defined(__OpenBSD__) || defined(__OpenBSD)
  79 #define DUK_F_OPENBSD
  80 #endif
  81
  82 /* NetBSD */
  83 #if defined(__NetBSD__) || defined(__NetBSD)
  84 #define DUK_F_NETBSD
  85 #endif
  86
  87 /* FreeBSD */
  88 #if defined(__FreeBSD__) || defined(__FreeBSD)
  89 #define DUK_F_FREEBSD
  90 #endif
  91
  92 /* BSD variant */
  93 #if defined(DUK_F_FREEBSD) || defined(DUK_F_NETBSD) || defined(DUK_F_OPENBSD) || \
  94     defined(__bsdi__) || defined(__DragonFly__)
  95 #define DUK_F_BSD
  96 #endif
  97
  98 /* Atari ST TOS.  __TOS__ defined by PureC.  No platform define in VBCC
  99  * apparently, so to use with VBCC user must define __TOS__ manually.
 100   */
 101 #if defined(__TOS__)
 102 #define DUK_F_TOS
 103 #endif
 104
 105 /* Motorola 68K.  Not defined by VBCC, so user must define one of these
 106  * manually when using VBCC.
 107  */
 108 #if defined(__m68k__) || defined(M68000) || defined(__MC68K__)
 109 #define DUK_F_M68K
 110 #endif
 111
 112 /* AmigaOS.  Neither AMIGA nor __amigaos__ is defined on VBCC, so user must
 113  * define 'AMIGA' manually when using VBCC.
 114  */
 115 #if defined(AMIGA) || defined(__amigaos__)
 116 #define DUK_F_AMIGAOS
 117 #endif
 118
 119 /* PowerPC */
 120 #if defined(__powerpc) || defined(__powerpc__) || defined(__PPC__)
 121 #define DUK_F_PPC
 122 #if defined(__PPC64__) || defined(__LP64__) || defined(_LP64)
 123 #define DUK_F_PPC64
 124 #else
 125 #define DUK_F_PPC32
 126 #endif
 127 #endif
 128
 129 /* Windows, both 32-bit and 64-bit */
 130 #if defined(_WIN32) || defined(WIN32) || defined(_WIN64) || defined(WIN64) || \
 131     defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__)
 132 #define DUK_F_WINDOWS
 133 #if defined(_WIN64) || defined(WIN64)
 134 #define DUK_F_WIN64
 135 #else
 136 #define DUK_F_WIN32
 137 #endif
 138 #endif
 139
 140 /* Flash player (e.g. Crossbridge) */
 141 #if defined(__FLASHPLAYER__)
 142 #define DUK_F_FLASHPLAYER
 143 #endif
 144
 145 /* QNX */
 146 #if defined(__QNX__)
 147 #define DUK_F_QNX
 148 #endif
 149
 150 /* TI-Nspire (using Ndless) */
 151 #if defined(_TINSPIRE)
 152 #define DUK_F_TINSPIRE
 153 #endif
 154
 155 /* Emscripten (provided explicitly by user), improve if possible */
 156 #if defined(EMSCRIPTEN)
 157 #define DUK_F_EMSCRIPTEN
 158 #endif
 159
 160 /* BCC (Bruce's C compiler): this is a "torture target" for compilation */
 161 #if defined(__BCC__) || defined(__BCC_VERSION__)
 162 #define DUK_F_BCC
 163 #endif
 164
 165 /* Linux */
 166 #if defined(__linux) || defined(__linux__) || defined(linux)
 167 #define DUK_F_LINUX
 168 #endif
 169
 170 /* illumos / Solaris */
 171 #if defined(__sun) && defined(__SVR4)
 172 #define DUK_F_SUN
 173 #endif
 174
 175 /* POSIX */
 176 #if defined(__posix)
 177 #define DUK_F_POSIX
 178 #endif
 179
 180 /* Cygwin */
 181 #if defined(__CYGWIN__)
 182 #define DUK_F_CYGWIN
 183 #endif
 184
 185 /* Generic Unix (includes Cygwin) */
 186 #if defined(__unix) || defined(__unix__) || defined(unix) || \
 187     defined(DUK_F_LINUX) || defined(DUK_F_BSD)
 188 #define DUK_F_UNIX
 189 #endif
 190
 191 /* stdint.h not available */
 192 #if defined(DUK_F_WINDOWS) && defined(_MSC_VER)
 193 #if (_MSC_VER < 1700)
 194 /* VS2012+ has stdint.h, < VS2012 does not (but it's available for download). */
 195 #define DUK_F_NO_STDINT_H
 196 #endif
 197 #endif
 198 #if !defined(DUK_F_NO_STDINT_H) && (defined(DUK_F_TOS) || defined(DUK_F_BCC))
 199 #define DUK_F_NO_STDINT_H
 200 #endif
 201
 202 /* C++ */
 203 #undef DUK_F_CPP
 204 #if defined(__cplusplus)
 205 #define DUK_F_CPP
 206 #endif
 207
 208 /* Intel x86 (32-bit), x64 (64-bit) or x32 (64-bit but 32-bit pointers),
 209  * define only one of DUK_F_X86, DUK_F_X64, DUK_F_X32.
 210  * https://sites.google.com/site/x32abi/
 211  */
 212 #if defined(__amd64__) || defined(__amd64) || \
 213     defined(__x86_64__) || defined(__x86_64) || \
 214     defined(_M_X64) || defined(_M_AMD64)
 215 #if defined(__ILP32__) || defined(_ILP32)
 216 #define DUK_F_X32
 217 #else
 218 #define DUK_F_X64
 219 #endif
 220 #elif defined(i386) || defined(__i386) || defined(__i386__) || \
 221       defined(__i486__) || defined(__i586__) || defined(__i686__) || \
 222       defined(__IA32__) || defined(_M_IX86) || defined(__X86__) || \
 223       defined(_X86_) || defined(__THW_INTEL__) || defined(__I86__)
 224 #if defined(__LP64__) || defined(_LP64)
 225 /* This should not really happen, but would indicate x64. */
 226 #define DUK_F_X64
 227 #else
 228 #define DUK_F_X86
 229 #endif
 230 #endif
 231
 232 /* ARM */
 233 #if defined(__arm__) || defined(__thumb__) || defined(_ARM) || defined(_M_ARM)
 234 #define DUK_F_ARM
 235 #if defined(__LP64__) || defined(_LP64) || defined(__arm64) || defined(__arm64__)
 236 #define DUK_F_ARM64
 237 #else
 238 #define DUK_F_ARM32
 239 #endif
 240 #endif
 241
 242 /* MIPS.  Related defines: __MIPSEB__, __MIPSEL__, __mips_isa_rev, __LP64__ */
 243 #if defined(__mips__) || defined(mips) || defined(_MIPS_ISA) || \
 244     defined(_R3000) || defined(_R4000) || defined(_R5900) || \
 245     defined(_MIPS_ISA_MIPS1) || defined(_MIPS_ISA_MIPS2) || \
 246     defined(_MIPS_ISA_MIPS3) || defined(_MIPS_ISA_MIPS4) || \
 247     defined(__mips) || defined(__MIPS__)
 248 #define DUK_F_MIPS
 249 #if defined(__LP64__) || defined(_LP64) || defined(__mips64) || \
 250     defined(__mips64__) || defined(__mips_n64)
 251 #define DUK_F_MIPS64
 252 #else
 253 #define DUK_F_MIPS32
 254 #endif
 255 #endif
 256
 257 /* SPARC */
 258 #if defined(sparc) || defined(__sparc) || defined(__sparc__)
 259 #define DUK_F_SPARC
 260 #if defined(__LP64__) || defined(_LP64)
 261 #define DUK_F_SPARC64
 262 #else
 263 #define DUK_F_SPARC32
 264 #endif
 265 #endif
 266
 267 /* SuperH */
 268 #if defined(__sh__) || \
 269     defined(__sh1__) || defined(__SH1__) || \
 270     defined(__sh2__) || defined(__SH2__) || \
 271     defined(__sh3__) || defined(__SH3__) || \
 272     defined(__sh4__) || defined(__SH4__) || \
 273     defined(__sh5__) || defined(__SH5__)
 274 #define DUK_F_SUPERH
 275 #endif
 276
 277 /* Clang */
 278 #if defined(__clang__)
 279 #define DUK_F_CLANG
 280 #endif
 281
 282 /* C99 or above */
 283 #undef DUK_F_C99
 284 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
 285 #define DUK_F_C99
 286 #endif
 287
 288 /* C++11 or above */
 289 #undef DUK_F_CPP11
 290 #if defined(__cplusplus) && (__cplusplus >= 201103L)
 291 #define DUK_F_CPP11
 292 #endif
 293
 294 /* GCC.  Clang also defines __GNUC__ so don't detect GCC if using Clang. */
 295 #if defined(__GNUC__) && !defined(__clang__) && !defined(DUK_F_CLANG)
 296 #define DUK_F_GCC
 297 #if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
 298 /* Convenience, e.g. gcc 4.5.1 == 40501; http://stackoverflow.com/questions/6031819/emulating-gccs-builtin-unreachable */
 299 #define DUK_F_GCC_VERSION  (__GNUC__ * 10000L + __GNUC_MINOR__ * 100L + __GNUC_PATCHLEVEL__)
 300 #else
 301 #error cannot figure out gcc version
 302 #endif
 303 #endif
 304
 305 /* MinGW.  Also GCC flags (DUK_F_GCC) are enabled now. */
 306 #if defined(__MINGW32__) || defined(__MINGW64__)
 307 #define DUK_F_MINGW
 308 #endif
 309
 310 /* MSVC */
 311 #if defined(_MSC_VER)
 312 /* MSVC preprocessor defines: http://msdn.microsoft.com/en-us/library/b0084kay.aspx
 313  * _MSC_FULL_VER includes the build number, but it has at least two formats, see e.g.
 314  * BOOST_MSVC_FULL_VER in http://www.boost.org/doc/libs/1_52_0/boost/config/compiler/visualc.hpp
 315  */
 316 #define DUK_F_MSVC
 317 #if defined(_MSC_FULL_VER)
 318 #if (_MSC_FULL_VER > 100000000)
 319 #define DUK_F_MSVC_FULL_VER _MSC_FULL_VER
 320 #else
 321 #define DUK_F_MSCV_FULL_VER (_MSC_FULL_VER * 10)
 322 #endif
 323 #endif
 324 #endif  /* _MSC_VER */
 325
 326 /* TinyC */
 327 #if defined(__TINYC__)
 328 /* http://bellard.org/tcc/tcc-doc.html#SEC9 */
 329 #define DUK_F_TINYC
 330 #endif
 331
 332 /* VBCC */
 333 #if defined(__VBCC__)
 334 #define DUK_F_VBCC
 335 #endif
 336
 337 /* Atari Mint */
 338 #if defined(__MINT__)
 339 #define DUK_F_MINT
 340 #endif
 341
 342 /*
 343  *  Platform autodetection
 344  */
 345
 346 /* Workaround for older C++ compilers before including <inttypes.h>,
 347  * see e.g.: https://sourceware.org/bugzilla/show_bug.cgi?id=15366
 348  */
 349 #if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS)
 350 #define __STDC_LIMIT_MACROS
 351 #endif
 352 #if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS)
 353 #define __STDC_CONSTANT_MACROS
 354 #endif
 355
 356 #if defined(DUK_F_APPLE)
 357 /* --- Mac OSX, iPhone, Darwin --- */
 358 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 359 #define DUK_USE_DATE_TZO_GMTIME_R
 360 #define DUK_USE_DATE_PRS_STRPTIME
 361 #define DUK_USE_DATE_FMT_STRFTIME
 362 #include <TargetConditionals.h>
 363 #include <architecture/byte_order.h>
 364 #include <sys/param.h>
 365 #include <sys/time.h>
 366 #include <time.h>
 367
 368 /* http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor */
 369 #if TARGET_IPHONE_SIMULATOR
 370 #define DUK_USE_OS_STRING "iphone-sim"
 371 #elif TARGET_OS_IPHONE
 372 #define DUK_USE_OS_STRING "iphone"
 373 #elif TARGET_OS_MAC
 374 #define DUK_USE_OS_STRING "osx"
 375 #else
 376 #define DUK_USE_OS_STRING "osx-unknown"
 377 #endif
 378
 379 /* Use _setjmp() on Apple by default, see GH-55. */
 380 #define DUK_JMPBUF_TYPE       jmp_buf
 381 #define DUK_SETJMP(jb)        _setjmp((jb))
 382 #define DUK_LONGJMP(jb)       _longjmp((jb), 1)
 383 #elif defined(DUK_F_OPENBSD)
 384 /* --- OpenBSD --- */
 385 /* http://www.monkey.org/openbsd/archive/ports/0401/msg00089.html */
 386 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 387 #define DUK_USE_DATE_TZO_GMTIME_R
 388 #define DUK_USE_DATE_PRS_STRPTIME
 389 #define DUK_USE_DATE_FMT_STRFTIME
 390 #include <sys/types.h>
 391 #include <sys/endian.h>
 392 #include <sys/param.h>
 393 #include <sys/time.h>
 394 #include <time.h>
 395
 396 #define DUK_USE_OS_STRING  "openbsd"
 397 #elif defined(DUK_F_BSD)
 398 /* --- Generic BSD --- */
 399 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 400 #define DUK_USE_DATE_TZO_GMTIME_R
 401 #define DUK_USE_DATE_PRS_STRPTIME
 402 #define DUK_USE_DATE_FMT_STRFTIME
 403 #include <sys/types.h>
 404 #include <sys/endian.h>
 405 #include <sys/param.h>
 406 #include <sys/time.h>
 407 #include <time.h>
 408
 409 #define DUK_USE_OS_STRING  "bsd"
 410 #elif defined(DUK_F_TOS)
 411 /* --- Atari ST TOS --- */
 412 #define DUK_USE_DATE_NOW_TIME
 413 #define DUK_USE_DATE_TZO_GMTIME
 414 /* no parsing (not an error) */
 415 #define DUK_USE_DATE_FMT_STRFTIME
 416 #include <time.h>
 417
 418 #define DUK_USE_OS_STRING  "tos"
 419
 420 /* TOS on M68K is always big endian. */
 421 #if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_M68K)
 422 #define DUK_USE_BYTEORDER 3
 423 #endif
 424 #elif defined(DUK_F_AMIGAOS)
 425 /* --- AmigaOS --- */
 426 #if defined(DUK_F_M68K)
 427 /* AmigaOS on M68k */
 428 #define DUK_USE_DATE_NOW_TIME
 429 #define DUK_USE_DATE_TZO_GMTIME
 430 /* no parsing (not an error) */
 431 #define DUK_USE_DATE_FMT_STRFTIME
 432 #include <time.h>
 433 #elif defined(DUK_F_PPC)
 434 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 435 #define DUK_USE_DATE_TZO_GMTIME_R
 436 #define DUK_USE_DATE_PRS_STRPTIME
 437 #define DUK_USE_DATE_FMT_STRFTIME
 438 #include <time.h>
 439 #ifndef UINTPTR_MAX
 440 #define UINTPTR_MAX UINT_MAX
 441 #endif
 442 #else
 443 #error AmigaOS but not M68K/PPC, not supported now
 444 #endif
 445
 446 #define DUK_USE_OS_STRING "amigaos"
 447
 448 /* AmigaOS on M68K or PPC is always big endian. */
 449 #if !defined(DUK_USE_BYTEORDER) && (defined(DUK_F_M68K) || defined(DUK_F_PPC))
 450 #define DUK_USE_BYTEORDER 3
 451 #endif
 452 #elif defined(DUK_F_WINDOWS)
 453 /* --- Windows --- */
 454 /* Initial fix: disable secure CRT related warnings when compiling Duktape
 455  * itself (must be defined before including Windows headers).  Don't define
 456  * for user code including duktape.h.
 457  */
 458 #if defined(DUK_COMPILING_DUKTAPE) && !defined(_CRT_SECURE_NO_WARNINGS)
 459 #define _CRT_SECURE_NO_WARNINGS
 460 #endif
 461
 462 /* Windows 32-bit and 64-bit are currently the same. */
 463 /* MSVC does not have sys/param.h */
 464 #define DUK_USE_DATE_NOW_WINDOWS
 465 #define DUK_USE_DATE_TZO_WINDOWS
 466 /* Note: PRS and FMT are intentionally left undefined for now.  This means
 467  * there is no platform specific date parsing/formatting but there is still
 468  * the ISO 8601 standard format.
 469  */
 470 #if defined(DUK_COMPILING_DUKTAPE)
 471 /* Only include when compiling Duktape to avoid polluting application build
 472  * with a lot of unnecessary defines.
 473  */
 474 #include <windows.h>
 475 #endif
 476
 477 #define DUK_USE_OS_STRING "windows"
 478
 479 /* On Windows, assume we're little endian.  Even Itanium which has a
 480  * configurable endianness runs little endian in Windows.
 481  */
 482 #if !defined(DUK_USE_BYTEORDER)
 483 #define DUK_USE_BYTEORDER 1
 484 #endif
 485 #elif defined(DUK_F_FLASHPLAYER)
 486 /* --- Flashplayer (Crossbridge) --- */
 487 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 488 #define DUK_USE_DATE_TZO_GMTIME_R
 489 #define DUK_USE_DATE_PRS_STRPTIME
 490 #define DUK_USE_DATE_FMT_STRFTIME
 491 #include <endian.h>
 492 #include <sys/param.h>
 493 #include <sys/time.h>
 494 #include <time.h>
 495
 496 #define DUK_USE_OS_STRING "flashplayer"
 497
 498 #if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_FLASHPLAYER)
 499 #define DUK_USE_BYTEORDER 1
 500 #endif
 501 #elif defined(DUK_F_QNX)
 502 /* --- QNX --- */
 503 #if defined(DUK_F_QNX) && defined(DUK_COMPILING_DUKTAPE)
 504 /* See: /opt/qnx650/target/qnx6/usr/include/sys/platform.h */
 505 #define _XOPEN_SOURCE    600
 506 #define _POSIX_C_SOURCE  200112L
 507 #endif
 508
 509 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 510 #define DUK_USE_DATE_TZO_GMTIME_R
 511 #define DUK_USE_DATE_PRS_STRPTIME
 512 #define DUK_USE_DATE_FMT_STRFTIME
 513 #include <sys/types.h>
 514 #include <sys/param.h>
 515 #include <sys/time.h>
 516 #include <time.h>
 517
 518 #define DUK_USE_OS_STRING "qnx"
 519 #elif defined(DUK_F_TINSPIRE)
 520 /* --- TI-Nspire --- */
 521 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 522 #define DUK_USE_DATE_TZO_GMTIME_R
 523 #define DUK_USE_DATE_PRS_STRPTIME
 524 #define DUK_USE_DATE_FMT_STRFTIME
 525 #include <sys/types.h>
 526 #include <sys/param.h>
 527 #include <sys/time.h>
 528 #include <time.h>
 529
 530 #define DUK_USE_OS_STRING "tinspire"
 531 #elif defined(DUK_F_EMSCRIPTEN)
 532 /* --- Emscripten --- */
 533 #if defined(DUK_COMPILING_DUKTAPE)
 534 #ifndef _POSIX_C_SOURCE
 535 #define _POSIX_C_SOURCE  200809L
 536 #endif
 537 #ifndef _GNU_SOURCE
 538 #define _GNU_SOURCE      /* e.g. getdate_r */
 539 #endif
 540 #ifndef _XOPEN_SOURCE
 541 #define _XOPEN_SOURCE    /* e.g. strptime */
 542 #endif
 543 #endif  /* DUK_COMPILING_DUKTAPE */
 544
 545 #include <sys/types.h>
 546 #if defined(DUK_F_BCC)
 547 /* no endian.h */
 548 #else
 549 #include <endian.h>
 550 #endif  /* DUK_F_BCC */
 551 #include <sys/param.h>
 552 #include <sys/time.h>
 553 #include <time.h>
 554 #include <stdint.h>
 555
 556 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 557 #define DUK_USE_DATE_TZO_GMTIME_R
 558 #define DUK_USE_DATE_PRS_STRPTIME
 559 #define DUK_USE_DATE_FMT_STRFTIME
 560
 561 #define DUK_USE_OS_STRING "emscripten"
 562 #elif defined(DUK_F_LINUX)
 563 /* --- Linux --- */
 564 #if defined(DUK_COMPILING_DUKTAPE)
 565 #ifndef _POSIX_C_SOURCE
 566 #define _POSIX_C_SOURCE  200809L
 567 #endif
 568 #ifndef _GNU_SOURCE
 569 #define _GNU_SOURCE      /* e.g. getdate_r */
 570 #endif
 571 #ifndef _XOPEN_SOURCE
 572 #define _XOPEN_SOURCE    /* e.g. strptime */
 573 #endif
 574 #endif  /* DUK_COMPILING_DUKTAPE */
 575
 576 #include <sys/types.h>
 577 #if defined(DUK_F_BCC)
 578 /* no endian.h or stdint.h */
 579 #else
 580 #include <endian.h>
 581 #include <stdint.h>
 582 #endif  /* DUK_F_BCC */
 583 #include <sys/param.h>
 584 #include <sys/time.h>
 585 #include <time.h>
 586
 587 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 588 #define DUK_USE_DATE_TZO_GMTIME_R
 589 #define DUK_USE_DATE_PRS_STRPTIME
 590 #define DUK_USE_DATE_FMT_STRFTIME
 591
 592 #define DUK_USE_OS_STRING "linux"
 593 #elif defined(DUK_F_SUN)
 594 /* --- Solaris --- */
 595 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 596 #define DUK_USE_DATE_TZO_GMTIME_R
 597 #define DUK_USE_DATE_PRS_STRPTIME
 598 #define DUK_USE_DATE_FMT_STRFTIME
 599
 600 #include <sys/types.h>
 601 #include <ast/endian.h>
 602 #include <sys/param.h>
 603 #include <sys/time.h>
 604 #include <time.h>
 605
 606 #define DUK_USE_OS_STRING "solaris"
 607 #elif defined(DUK_F_POSIX)
 608 /* --- Generic POSIX --- */
 609 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 610 #define DUK_USE_DATE_TZO_GMTIME_R
 611 #define DUK_USE_DATE_PRS_STRPTIME
 612 #define DUK_USE_DATE_FMT_STRFTIME
 613 #include <sys/types.h>
 614 #include <endian.h>
 615 #include <sys/param.h>
 616 #include <sys/time.h>
 617 #include <time.h>
 618
 619 #define DUK_USE_OS_STRING "posix"
 620 #elif defined(DUK_F_CYGWIN)
 621 /* --- Cygwin --- */
 622 /* don't use strptime() for now */
 623 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 624 #define DUK_USE_DATE_TZO_GMTIME_R
 625 #define DUK_USE_DATE_FMT_STRFTIME
 626 #include <sys/types.h>
 627 #include <endian.h>
 628 #include <sys/param.h>
 629 #include <sys/time.h>
 630 #include <time.h>
 631
 632 #define DUK_JMPBUF_TYPE       jmp_buf
 633 #define DUK_SETJMP(jb)        _setjmp((jb))
 634 #define DUK_LONGJMP(jb)       _longjmp((jb), 1)
 635
 636 #define DUK_USE_OS_STRING "windows"
 637 #elif defined(DUK_F_UNIX)
 638 /* --- Generic UNIX --- */
 639 #define DUK_USE_DATE_NOW_GETTIMEOFDAY
 640 #define DUK_USE_DATE_TZO_GMTIME_R
 641 #define DUK_USE_DATE_PRS_STRPTIME
 642 #define DUK_USE_DATE_FMT_STRFTIME
 643 #include <time.h>
 644 #include <sys/time.h>
 645 #define DUK_USE_OS_STRING "unknown"
 646 #else
 647 /* --- Generic fallback --- */
 648 /* The most portable current time provider is time(), but it only has a
 649  * one second resolution.
 650  */
 651 #define DUK_USE_DATE_NOW_TIME
 652
 653 /* The most portable way to figure out local time offset is gmtime(),
 654  * but it's not thread safe so use with caution.
 655  */
 656 #define DUK_USE_DATE_TZO_GMTIME
 657
 658 /* Avoid custom date parsing and formatting for portability. */
 659 #undef DUK_USE_DATE_PRS_STRPTIME
 660 #undef DUK_USE_DATE_FMT_STRFTIME
 661
 662 /* Rely on C89 headers only; time.h must be here. */
 663 #include <time.h>
 664
 665 #define DUK_USE_OS_STRING "unknown"
 666 #endif  /* autodetect platform */
 667
 668 /* Shared includes: C89 */
 669 #include <stdio.h>
 670 #include <stdlib.h>
 671 #include <string.h>
 672 #include <stdarg.h>  /* varargs */
 673 #include <setjmp.h>
 674 #include <stddef.h>  /* e.g. ptrdiff_t */
 675 #include <math.h>
 676 #include <limits.h>
 677
 678 /* date.h is omitted, and included per platform */
 679
 680 /* Shared includes: stdint.h is C99 */
 681 #if defined(DUK_F_NO_STDINT_H)
 682 /* stdint.h not available */
 683 #else
 684 /* Technically C99 (C++11) but found in many systems.  On some systems
 685  * __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS must be defined before
 686  * including stdint.h (see above).
 687  */
 688 #include <stdint.h>
 689 #endif
 690
 691 #if defined(DUK_F_CPP)
 692 #include <exception>  /* std::exception */
 693 #endif
 694
 695 /*
 696  *  Architecture autodetection
 697  */
 698
 699 #if defined(DUK_F_X86)
 700 /* --- x86 --- */
 701 #define DUK_USE_ARCH_STRING "x86"
 702 #if !defined(DUK_USE_BYTEORDER)
 703 #define DUK_USE_BYTEORDER 1
 704 #endif
 705 /* XXX: This is technically not guaranteed because it's possible to configure
 706  * an x86 to require aligned accesses with Alignment Check (AC) flag.
 707  */
 708 #if !defined(DUK_USE_ALIGN_BY)
 709 #define DUK_USE_ALIGN_BY 1
 710 #endif
 711 #define DUK_USE_PACKED_TVAL
 712 #define DUK_F_PACKED_TVAL_PROVIDED
 713 #elif defined(DUK_F_X64)
 714 /* --- x64 --- */
 715 #define DUK_USE_ARCH_STRING "x64"
 716 #if !defined(DUK_USE_BYTEORDER)
 717 #define DUK_USE_BYTEORDER 1
 718 #endif
 719 /* XXX: This is technically not guaranteed because it's possible to configure
 720  * an x86 to require aligned accesses with Alignment Check (AC) flag.
 721  */
 722 #if !defined(DUK_USE_ALIGN_BY)
 723 #define DUK_USE_ALIGN_BY 1
 724 #endif
 725 #undef DUK_USE_PACKED_TVAL
 726 #define DUK_F_PACKED_TVAL_PROVIDED
 727 #elif defined(DUK_F_X32)
 728 /* --- x32 --- */
 729 #define DUK_USE_ARCH_STRING "x32"
 730 #if !defined(DUK_USE_BYTEORDER)
 731 #define DUK_USE_BYTEORDER 1
 732 #endif
 733 /* XXX: This is technically not guaranteed because it's possible to configure
 734  * an x86 to require aligned accesses with Alignment Check (AC) flag.
 735  */
 736 #if !defined(DUK_USE_ALIGN_BY)
 737 #define DUK_USE_ALIGN_BY 1
 738 #endif
 739 #define DUK_USE_PACKED_TVAL
 740 #define DUK_F_PACKED_TVAL_PROVIDED
 741 #elif defined(DUK_F_ARM32)
 742 /* --- ARM 32-bit --- */
 743 #define DUK_USE_ARCH_STRING "arm32"
 744 /* Byte order varies, so rely on autodetect. */
 745 #if !defined(DUK_USE_ALIGN_BY)
 746 #define DUK_USE_ALIGN_BY 4
 747 #endif
 748 #define DUK_USE_PACKED_TVAL
 749 #define DUK_F_PACKED_TVAL_PROVIDED
 750 #elif defined(DUK_F_ARM64)
 751 /* --- ARM 64-bit --- */
 752 #define DUK_USE_ARCH_STRING "arm64"
 753 /* Byte order varies, so rely on autodetect. */
 754 #if !defined(DUK_USE_ALIGN_BY)
 755 #define DUK_USE_ALIGN_BY 8
 756 #endif
 757 #undef DUK_USE_PACKED_TVAL
 758 #define DUK_F_PACKED_TVAL_PROVIDED
 759 #elif defined(DUK_F_MIPS32)
 760 /* --- MIPS 32-bit --- */
 761 #define DUK_USE_ARCH_STRING "mips32"
 762 /* MIPS byte order varies so rely on autodetection. */
 763 /* Based on 'make checkalign' there are no alignment requirements on
 764  * Linux MIPS except for doubles, which need align by 4.  Alignment
 765  * requirements vary based on target though.
 766  */
 767 #if !defined(DUK_USE_ALIGN_BY)
 768 #define DUK_USE_ALIGN_BY 4
 769 #endif
 770 #define DUK_USE_PACKED_TVAL
 771 #define DUK_F_PACKED_TVAL_PROVIDED
 772 #elif defined(DUK_F_MIPS64)
 773 /* --- MIPS 64-bit --- */
 774 #define DUK_USE_ARCH_STRING "mips64"
 775 /* MIPS byte order varies so rely on autodetection. */
 776 /* Good default is a bit arbitrary because alignment requirements
 777  * depend on target.  See https://github.com/svaarala/duktape/issues/102.
 778  */
 779 #if !defined(DUK_USE_ALIGN_BY)
 780 #define DUK_USE_ALIGN_BY 8
 781 #endif
 782 #undef DUK_USE_PACKED_TVAL
 783 #define DUK_F_PACKED_TVAL_PROVIDED
 784 #elif defined(DUK_F_PPC32)
 785 /* --- PowerPC 32-bit --- */
 786 #define DUK_USE_ARCH_STRING "ppc32"
 787 #if !defined(DUK_USE_BYTEORDER)
 788 #define DUK_USE_BYTEORDER 3
 789 #endif
 790 #if !defined(DUK_USE_ALIGN_BY)
 791 #define DUK_USE_ALIGN_BY 8
 792 #endif
 793 #define DUK_USE_PACKED_TVAL
 794 #define DUK_F_PACKED_TVAL_PROVIDED
 795 #elif defined(DUK_F_PPC64)
 796 /* --- PowerPC 64-bit --- */
 797 #define DUK_USE_ARCH_STRING "ppc64"
 798 #if !defined(DUK_USE_BYTEORDER)
 799 #define DUK_USE_BYTEORDER 3
 800 #endif
 801 #if !defined(DUK_USE_ALIGN_BY)
 802 #define DUK_USE_ALIGN_BY 8
 803 #endif
 804 #undef DUK_USE_PACKED_TVAL
 805 #define DUK_F_PACKED_TVAL_PROVIDED
 806 #elif defined(DUK_F_SPARC32)
 807 /* --- SPARC 32-bit --- */
 808 #define DUK_USE_ARCH_STRING "sparc32"
 809 /* SPARC byte order varies so rely on autodetection. */
 810 #if !defined(DUK_USE_ALIGN_BY)
 811 #define DUK_USE_ALIGN_BY 8
 812 #endif
 813 #define DUK_USE_PACKED_TVAL
 814 #define DUK_F_PACKED_TVAL_PROVIDED
 815 #elif defined(DUK_F_SPARC64)
 816 /* --- SPARC 64-bit --- */
 817 #define DUK_USE_ARCH_STRING "sparc64"
 818 /* SPARC byte order varies so rely on autodetection. */
 819 #if !defined(DUK_USE_ALIGN_BY)
 820 #define DUK_USE_ALIGN_BY 8
 821 #endif
 822 #undef DUK_USE_PACKED_TVAL
 823 #define DUK_F_PACKED_TVAL_PROVIDED
 824 #elif defined(DUK_F_SUPERH)
 825 /* --- SuperH --- */
 826 #define DUK_USE_ARCH_STRING "sh"
 827 /* Byte order varies, rely on autodetection. */
 828 /* Based on 'make checkalign' there are no alignment requirements on
 829  * Linux SH4, but align by 4 is probably a good basic default.
 830  */
 831 #if !defined(DUK_USE_ALIGN_BY)
 832 #define DUK_USE_ALIGN_BY 4
 833 #endif
 834 #define DUK_USE_PACKED_TVAL
 835 #define DUK_F_PACKED_TVAL_PROVIDED
 836 #elif defined(DUK_F_M68K)
 837 /* --- Motorola 68k --- */
 838 #define DUK_USE_ARCH_STRING "m68k"
 839 #if !defined(DUK_USE_BYTEORDER)
 840 #define DUK_USE_BYTEORDER 3
 841 #endif
 842 #if !defined(DUK_USE_ALIGN_BY)
 843 #define DUK_USE_ALIGN_BY 8
 844 #endif
 845 #define DUK_USE_PACKED_TVAL
 846 #define DUK_F_PACKED_TVAL_PROVIDED
 847 #elif defined(DUK_F_EMSCRIPTEN)
 848 /* --- Emscripten --- */
 849 #define DUK_USE_ARCH_STRING "emscripten"
 850 #if !defined(DUK_USE_BYTEORDER)
 851 #define DUK_USE_BYTEORDER 1
 852 #endif
 853 #if !defined(DUK_USE_ALIGN_BY)
 854 #define DUK_USE_ALIGN_BY 8
 855 #endif
 856 #undef DUK_USE_PACKED_TVAL
 857 #define DUK_F_PACKED_TVAL_PROVIDED
 858 #else
 859 /* --- Generic --- */
 860 /* These are necessary wild guesses. */
 861 #define DUK_USE_ARCH_STRING "generic"
 862 /* Rely on autodetection for byte order, alignment, and packed tval. */
 863 #endif  /* autodetect architecture */
 864
 865 /*
 866  *  Compiler autodetection
 867  */
 868
 869 #if defined(DUK_F_CLANG)
 870 /* --- Clang --- */
 871 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
 872 /* C99 / C++11 and above: rely on va_copy() which is required. */
 873 #define DUK_VA_COPY(dest,src) va_copy(dest,src)
 874 #else
 875 /* Clang: assume we have __va_copy() in non-C99 mode. */
 876 #define DUK_VA_COPY(dest,src) __va_copy(dest,src)
 877 #endif
 878
 879 #define DUK_NORETURN(decl)  decl __attribute__((noreturn))
 880
 881 #if defined(__clang__) && defined(__has_builtin)
 882 #if __has_builtin(__builtin_unreachable)
 883 #define DUK_UNREACHABLE()  do { __builtin_unreachable(); } while (0)
 884 #endif
 885 #endif
 886
 887 #define DUK_USE_BRANCH_HINTS
 888 #define DUK_LIKELY(x)    __builtin_expect((x), 1)
 889 #define DUK_UNLIKELY(x)  __builtin_expect((x), 0)
 890
 891 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
 892 #define DUK_NOINLINE        __attribute__((noinline))
 893 #define DUK_INLINE          inline
 894 #define DUK_ALWAYS_INLINE   inline __attribute__((always_inline))
 895 #endif
 896
 897 #if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
 898 /* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
 899  * compiling Duktape or the application.
 900  */
 901 #if defined(DUK_COMPILING_DUKTAPE)
 902 #define DUK_EXTERNAL_DECL  extern __declspec(dllexport)
 903 #define DUK_EXTERNAL       __declspec(dllexport)
 904 #else
 905 #define DUK_EXTERNAL_DECL  extern __declspec(dllimport)
 906 #define DUK_EXTERNAL       should_not_happen
 907 #endif
 908 #if defined(DUK_SINGLE_FILE)
 909 #define DUK_INTERNAL_DECL  static
 910 #define DUK_INTERNAL       static
 911 #else
 912 #define DUK_INTERNAL_DECL  extern
 913 #define DUK_INTERNAL       /*empty*/
 914 #endif
 915 #define DUK_LOCAL_DECL     static
 916 #define DUK_LOCAL          static
 917 #else
 918 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
 919 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
 920 #if defined(DUK_SINGLE_FILE)
 921 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
 922 /* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
 923  * Clang.  Based on documentation it should suffice to have the attribute
 924  * in the declaration only, but in practice some warnings are generated unless
 925  * the attribute is also applied to the definition.
 926  */
 927 #define DUK_INTERNAL_DECL  static __attribute__ ((unused))
 928 #define DUK_INTERNAL       static __attribute__ ((unused))
 929 #else
 930 #define DUK_INTERNAL_DECL  static
 931 #define DUK_INTERNAL       static
 932 #endif
 933 #else
 934 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
 935 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
 936 #define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
 937 #else
 938 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
 939 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
 940 #endif
 941 #endif
 942 #define DUK_LOCAL_DECL     static
 943 #define DUK_LOCAL          static
 944 #endif
 945
 946 #if defined(DUK_F_CPP)
 947 #define DUK_USE_COMPILER_STRING "clang"
 948 #else
 949 #define DUK_USE_COMPILER_STRING "clang"
 950 #endif
 951
 952 #undef DUK_USE_VARIADIC_MACROS
 953 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
 954 #define DUK_USE_VARIADIC_MACROS
 955 #endif
 956
 957 #define DUK_USE_UNION_INITIALIZERS
 958
 959 #undef DUK_USE_FLEX_C99
 960 #undef DUK_USE_FLEX_ZEROSIZE
 961 #undef DUK_USE_FLEX_ONESIZE
 962 #if defined(DUK_F_C99)
 963 #define DUK_USE_FLEX_C99
 964 #else
 965 #define DUK_USE_FLEX_ZEROSIZE
 966 #endif
 967
 968 #undef DUK_USE_GCC_PRAGMAS
 969 #define DUK_USE_PACK_CLANG_ATTR
 970 #elif defined(DUK_F_GCC)
 971 /* --- GCC --- */
 972 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
 973 /* C99 / C++11 and above: rely on va_copy() which is required. */
 974 #define DUK_VA_COPY(dest,src) va_copy(dest,src)
 975 #else
 976 /* GCC: assume we have __va_copy() in non-C99 mode. */
 977 #define DUK_VA_COPY(dest,src) __va_copy(dest,src)
 978 #endif
 979
 980 #if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 20500L)
 981 /* since gcc-2.5 */
 982 #define DUK_NORETURN(decl)  decl __attribute__((noreturn))
 983 #endif
 984
 985 #if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
 986 /* since gcc-4.5 */
 987 #define DUK_UNREACHABLE()  do { __builtin_unreachable(); } while (0)
 988 #endif
 989
 990 #define DUK_USE_BRANCH_HINTS
 991 #if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
 992 /* GCC: test not very accurate; enable only in relatively recent builds
 993  * because of bugs in gcc-4.4 (http://lists.debian.org/debian-gcc/2010/04/msg00000.html)
 994  */
 995 #define DUK_LIKELY(x)    __builtin_expect((x), 1)
 996 #define DUK_UNLIKELY(x)  __builtin_expect((x), 0)
 997 #endif
 998
 999 #if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \
1000     defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 30101)
1001 #define DUK_NOINLINE        __attribute__((noinline))
1002 #define DUK_INLINE          inline
1003 #define DUK_ALWAYS_INLINE   inline __attribute__((always_inline))
1004 #endif
1005
1006 #if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1007 /* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1008  * compiling Duktape or the application.
1009  */
1010 #if defined(DUK_COMPILING_DUKTAPE)
1011 #define DUK_EXTERNAL_DECL  extern __declspec(dllexport)
1012 #define DUK_EXTERNAL       __declspec(dllexport)
1013 #else
1014 #define DUK_EXTERNAL_DECL  extern __declspec(dllimport)
1015 #define DUK_EXTERNAL       should_not_happen
1016 #endif
1017 #if defined(DUK_SINGLE_FILE)
1018 #define DUK_INTERNAL_DECL  static
1019 #define DUK_INTERNAL       static
1020 #else
1021 #define DUK_INTERNAL_DECL  extern
1022 #define DUK_INTERNAL       /*empty*/
1023 #endif
1024 #define DUK_LOCAL_DECL     static
1025 #define DUK_LOCAL          static
1026 #elif defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40000)
1027 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
1028 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
1029 #if defined(DUK_SINGLE_FILE)
1030 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1031 /* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1032  * Clang.  Based on documentation it should suffice to have the attribute
1033  * in the declaration only, but in practice some warnings are generated unless
1034  * the attribute is also applied to the definition.
1035  */
1036 #define DUK_INTERNAL_DECL  static __attribute__ ((unused))
1037 #define DUK_INTERNAL       static __attribute__ ((unused))
1038 #else
1039 #define DUK_INTERNAL_DECL  static
1040 #define DUK_INTERNAL       static
1041 #endif
1042 #else
1043 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1044 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1045 #define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1046 #else
1047 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
1048 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
1049 #endif
1050 #endif
1051 #define DUK_LOCAL_DECL     static
1052 #define DUK_LOCAL          static
1053 #endif
1054
1055 #if defined(DUK_F_MINGW)
1056 #if defined(DUK_F_CPP)
1057 #define DUK_USE_COMPILER_STRING "mingw++"
1058 #else
1059 #define DUK_USE_COMPILER_STRING "mingw"
1060 #endif
1061 #else
1062 #if defined(DUK_F_CPP)
1063 #define DUK_USE_COMPILER_STRING "g++"
1064 #else
1065 #define DUK_USE_COMPILER_STRING "gcc"
1066 #endif
1067 #endif
1068
1069 #undef DUK_USE_VARIADIC_MACROS
1070 #if defined(DUK_F_C99) || (defined(DUK_F_CPP11) && defined(__GNUC__))
1071 #define DUK_USE_VARIADIC_MACROS
1072 #endif
1073
1074 #define DUK_USE_UNION_INITIALIZERS
1075
1076 #undef DUK_USE_FLEX_C99
1077 #undef DUK_USE_FLEX_ZEROSIZE
1078 #undef DUK_USE_FLEX_ONESIZE
1079 #if defined(DUK_F_C99)
1080 #define DUK_USE_FLEX_C99
1081 #else
1082 #define DUK_USE_FLEX_ZEROSIZE
1083 #endif
1084
1085 #if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40600)
1086 #define DUK_USE_GCC_PRAGMAS
1087 #else
1088 #undef DUK_USE_GCC_PRAGMAS
1089 #endif
1090
1091 #define DUK_USE_PACK_GCC_ATTR
1092 #elif defined(DUK_F_MSVC)
1093 /* --- MSVC --- */
1094 /* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */
1095 #define DUK_NORETURN(decl)  __declspec(noreturn) decl
1096
1097 /* XXX: DUK_UNREACHABLE for msvc? */
1098
1099 #undef DUK_USE_BRANCH_HINTS
1100
1101 /* XXX: DUK_LIKELY, DUK_UNLIKELY for msvc? */
1102 /* XXX: DUK_NOINLINE, DUK_INLINE, DUK_ALWAYS_INLINE for msvc? */
1103
1104 #if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1105 /* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1106  * compiling Duktape or the application.
1107  */
1108 #if defined(DUK_COMPILING_DUKTAPE)
1109 #define DUK_EXTERNAL_DECL  extern __declspec(dllexport)
1110 #define DUK_EXTERNAL       __declspec(dllexport)
1111 #else
1112 #define DUK_EXTERNAL_DECL  extern __declspec(dllimport)
1113 #define DUK_EXTERNAL       should_not_happen
1114 #endif
1115 #if defined(DUK_SINGLE_FILE)
1116 #define DUK_INTERNAL_DECL  static
1117 #define DUK_INTERNAL       static
1118 #else
1119 #define DUK_INTERNAL_DECL  extern
1120 #define DUK_INTERNAL       /*empty*/
1121 #endif
1122 #define DUK_LOCAL_DECL     static
1123 #define DUK_LOCAL          static
1124 #endif
1125
1126 #if defined(DUK_F_CPP)
1127 #define DUK_USE_COMPILER_STRING "msvc++"
1128 #else
1129 #define DUK_USE_COMPILER_STRING "msvc"
1130 #endif
1131
1132 #undef DUK_USE_VARIADIC_MACROS
1133 #if defined(DUK_F_C99)
1134 #define DUK_USE_VARIADIC_MACROS
1135 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
1136 /* VS2005+ should have variadic macros even when they're not C99. */
1137 #define DUK_USE_VARIADIC_MACROS
1138 #endif
1139
1140 #undef DUK_USE_UNION_INITIALIZERS
1141 #if defined(_MSC_VER) && (_MSC_VER >= 1800)
1142 /* VS2013+ supports union initializers but there's a bug involving union-inside-struct:
1143  * https://connect.microsoft.com/VisualStudio/feedback/details/805981
1144  * The bug was fixed (at least) in VS2015 so check for VS2015 for now:
1145  * https://blogs.msdn.microsoft.com/vcblog/2015/07/01/c-compiler-front-end-fixes-in-vs2015/
1146  * Manually tested using VS2013, CL reports 18.00.31101, so enable for VS2013 too.
1147  */
1148 #define DUK_USE_UNION_INITIALIZERS
1149 #endif
1150
1151 #undef DUK_USE_FLEX_C99
1152 #undef DUK_USE_FLEX_ZEROSIZE
1153 #undef DUK_USE_FLEX_ONESIZE
1154 #if defined(DUK_F_C99)
1155 #define DUK_USE_FLEX_C99
1156 #else
1157 #define DUK_USE_FLEX_ZEROSIZE
1158 #endif
1159
1160 #undef DUK_USE_GCC_PRAGMAS
1161
1162 #define DUK_USE_PACK_MSVC_PRAGMA
1163
1164 /* These have been tested from VS2008 onwards; may work in older VS versions
1165  * too but not enabled by default.
1166  */
1167 #if defined(_MSC_VER) && (_MSC_VER >= 1500)
1168 #define DUK_NOINLINE        __declspec(noinline)
1169 #define DUK_INLINE          __inline
1170 #define DUK_ALWAYS_INLINE   __forceinline
1171 #endif
1172
1173 #if defined(_MSC_VER) && (_MSC_VER >= 1900)
1174 #define DUK_SNPRINTF     snprintf
1175 #define DUK_VSNPRINTF    vsnprintf
1176 #else
1177 /* (v)snprintf() is missing before MSVC 2015.  Note that _(v)snprintf() does
1178  * NOT NUL terminate on truncation, but Duktape code never assumes that.
1179  * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
1180  */
1181 #define DUK_SNPRINTF     _snprintf
1182 #define DUK_VSNPRINTF    _vsnprintf
1183 #endif
1184 #elif defined(DUK_F_EMSCRIPTEN)
1185 /* --- Emscripten --- */
1186 #define DUK_NORETURN(decl)  decl __attribute__((noreturn))
1187
1188 #if defined(__clang__) && defined(__has_builtin)
1189 #if __has_builtin(__builtin_unreachable)
1190 #define DUK_UNREACHABLE()  do { __builtin_unreachable(); } while (0)
1191 #endif
1192 #endif
1193
1194 #define DUK_USE_BRANCH_HINTS
1195 #define DUK_LIKELY(x)    __builtin_expect((x), 1)
1196 #define DUK_UNLIKELY(x)  __builtin_expect((x), 0)
1197
1198 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1199 #define DUK_NOINLINE        __attribute__((noinline))
1200 #define DUK_INLINE          inline
1201 #define DUK_ALWAYS_INLINE   inline __attribute__((always_inline))
1202 #endif
1203
1204 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
1205 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
1206 #if defined(DUK_SINGLE_FILE)
1207 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1208 /* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1209  * Clang.  Based on documentation it should suffice to have the attribute
1210  * in the declaration only, but in practice some warnings are generated unless
1211  * the attribute is also applied to the definition.
1212  */
1213 #define DUK_INTERNAL_DECL  static __attribute__ ((unused))
1214 #define DUK_INTERNAL       static __attribute__ ((unused))
1215 #else
1216 #define DUK_INTERNAL_DECL  static
1217 #define DUK_INTERNAL       static
1218 #endif
1219 #else
1220 #if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1221 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1222 #define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1223 #else
1224 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
1225 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
1226 #endif
1227 #endif
1228 #define DUK_LOCAL_DECL     static
1229 #define DUK_LOCAL          static
1230
1231 #define DUK_USE_COMPILER_STRING "emscripten"
1232
1233 #undef DUK_USE_VARIADIC_MACROS
1234 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1235 #define DUK_USE_VARIADIC_MACROS
1236 #endif
1237
1238 #define DUK_USE_UNION_INITIALIZERS
1239
1240 #undef DUK_USE_FLEX_C99
1241 #undef DUK_USE_FLEX_ZEROSIZE
1242 #undef DUK_USE_FLEX_ONESIZE
1243 #if defined(DUK_F_C99)
1244 #define DUK_USE_FLEX_C99
1245 #else
1246 #define DUK_USE_FLEX_ZEROSIZE
1247 #endif
1248
1249 #undef DUK_USE_GCC_PRAGMAS
1250 #define DUK_USE_PACK_CLANG_ATTR
1251 #elif defined(DUK_F_TINYC)
1252 /* --- TinyC --- */
1253 #undef DUK_USE_BRANCH_HINTS
1254
1255 #if defined(DUK_F_CPP)
1256 #define DUK_USE_COMPILER_STRING "tinyc++"
1257 #else
1258 #define DUK_USE_COMPILER_STRING "tinyc"
1259 #endif
1260
1261 /* http://bellard.org/tcc/tcc-doc.html#SEC7 */
1262 #define DUK_USE_VARIADIC_MACROS
1263
1264 #define DUK_USE_UNION_INITIALIZERS
1265
1266 /* Most portable, wastes space */
1267 #define DUK_USE_FLEX_ONESIZE
1268
1269 /* Most portable, potentially wastes space */
1270 #define DUK_USE_PACK_DUMMY_MEMBER
1271 #elif defined(DUK_F_VBCC)
1272 /* --- VBCC --- */
1273 #undef DUK_USE_BRANCH_HINTS
1274
1275 #if defined(DUK_F_CPP)
1276 #define DUK_USE_COMPILER_STRING "vbcc-c++"
1277 #else
1278 #define DUK_USE_COMPILER_STRING "vbcc"
1279 #endif
1280
1281 #undef DUK_USE_VARIADIC_MACROS
1282 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1283 #define DUK_USE_VARIADIC_MACROS
1284 #endif
1285
1286 /* VBCC supports C99 so check only for C99 for union initializer support.
1287  * Designated union initializers would possibly work even without a C99 check.
1288  */
1289 #undef DUK_USE_UNION_INITIALIZERS
1290 #if defined(DUK_F_C99)
1291 #define DUK_USE_UNION_INITIALIZERS
1292 #endif
1293
1294 #define DUK_USE_FLEX_ZEROSIZE
1295 #define DUK_USE_PACK_DUMMY_MEMBER
1296 #elif defined(DUK_F_BCC)
1297 /* --- Bruce's C compiler --- */
1298 #undef DUK_USE_BRANCH_HINTS
1299
1300 #if defined(DUK_F_CPP)
1301 #define DUK_USE_COMPILER_STRING "bcc++"
1302 #else
1303 #define DUK_USE_COMPILER_STRING "bcc"
1304 #endif
1305
1306 /* Most portable */
1307 #undef DUK_USE_VARIADIC_MACROS
1308
1309 /* Most portable, wastes space */
1310 #undef DUK_USE_UNION_INITIALIZERS
1311
1312 /* Most portable, wastes space */
1313 #define DUK_USE_FLEX_ONESIZE
1314
1315 /* Most portable, potentially wastes space */
1316 #define DUK_USE_PACK_DUMMY_MEMBER
1317
1318 /* BCC, assume we're on x86. */
1319 #if !defined(DUK_USE_BYTEORDER)
1320 #define DUK_USE_BYTEORDER 1
1321 #endif
1322 #else
1323 /* --- Generic --- */
1324 #undef DUK_USE_BRANCH_HINTS
1325
1326 #if defined(DUK_F_CPP)
1327 #define DUK_USE_COMPILER_STRING "generic-c++"
1328 #else
1329 #define DUK_USE_COMPILER_STRING "generic"
1330 #endif
1331
1332 #undef DUK_USE_VARIADIC_MACROS
1333 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1334 #define DUK_USE_VARIADIC_MACROS
1335 #endif
1336
1337 /* C++ doesn't have standard designated union initializers ({ .foo = 1 }). */
1338 #undef DUK_USE_UNION_INITIALIZERS
1339 #if defined(DUK_F_C99)
1340 #define DUK_USE_UNION_INITIALIZERS
1341 #endif
1342
1343 /* Most portable, wastes space */
1344 #define DUK_USE_FLEX_ONESIZE
1345
1346 /* Most portable, potentially wastes space */
1347 #define DUK_USE_PACK_DUMMY_MEMBER
1348 #endif  /* autodetect compiler */
1349
1350 /* uclibc */
1351 #if defined(__UCLIBC__)
1352 #define DUK_F_UCLIBC
1353 #endif
1354
1355 /*
1356  *  Wrapper typedefs and constants for integer types, also sanity check types.
1357  *
1358  *  C99 typedefs are quite good but not always available, and we want to avoid
1359  *  forcibly redefining the C99 typedefs.  So, there are Duktape wrappers for
1360  *  all C99 typedefs and Duktape code should only use these typedefs.  Type
1361  *  detection when C99 is not supported is best effort and may end up detecting
1362  *  some types incorrectly.
1363  *
1364  *  Pointer sizes are a portability problem: pointers to different types may
1365  *  have a different size and function pointers are very difficult to manage
1366  *  portably.
1367  *
1368  *  http://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types
1369  *
1370  *  Note: there's an interesting corner case when trying to define minimum
1371  *  signed integer value constants which leads to the current workaround of
1372  *  defining e.g. -0x80000000 as (-0x7fffffffL - 1L).  See doc/code-issues.txt
1373  *  for a longer discussion.
1374  *
1375  *  Note: avoid typecasts and computations in macro integer constants as they
1376  *  can then no longer be used in macro relational expressions (such as
1377  *  #if DUK_SIZE_MAX < 0xffffffffUL).  There is internal code which relies on
1378  *  being able to compare DUK_SIZE_MAX against a limit.
1379  */
1380
1381 /* XXX: add feature options to force basic types from outside? */
1382
1383 #if !defined(INT_MAX)
1384 #error INT_MAX not defined
1385 #endif
1386
1387 /* Check that architecture is two's complement, standard C allows e.g.
1388  * INT_MIN to be -2**31+1 (instead of -2**31).
1389  */
1390 #if defined(INT_MAX) && defined(INT_MIN)
1391 #if INT_MAX != -(INT_MIN + 1)
1392 #error platform does not seem complement of two
1393 #endif
1394 #else
1395 #error cannot check complement of two
1396 #endif
1397
1398 /* Pointer size determination based on __WORDSIZE or architecture when
1399  * that's not available.
1400  */
1401 #if defined(DUK_F_X86) || defined(DUK_F_X32) || \
1402     defined(DUK_F_M68K) || defined(DUK_F_PPC32) || \
1403     defined(DUK_F_BCC) || \
1404     (defined(__WORDSIZE) && (__WORDSIZE == 32))
1405 #define DUK_F_32BIT_PTRS
1406 #elif defined(DUK_F_X64) || \
1407       (defined(__WORDSIZE) && (__WORDSIZE == 64))
1408 #define DUK_F_64BIT_PTRS
1409 #else
1410 /* not sure, not needed with C99 anyway */
1411 #endif
1412
1413 /* Intermediate define for 'have inttypes.h' */
1414 #undef DUK_F_HAVE_INTTYPES
1415 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
1416     !(defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC))
1417 /* vbcc + AmigaOS has C99 but no inttypes.h */
1418 #define DUK_F_HAVE_INTTYPES
1419 #elif defined(__cplusplus) && (__cplusplus >= 201103L)
1420 /* C++11 apparently ratified stdint.h */
1421 #define DUK_F_HAVE_INTTYPES
1422 #endif
1423
1424 /* Basic integer typedefs and limits, preferably from inttypes.h, otherwise
1425  * through automatic detection.
1426  */
1427 #if defined(DUK_F_HAVE_INTTYPES)
1428 /* C99 or compatible */
1429
1430 #define DUK_F_HAVE_64BIT
1431 #include <inttypes.h>
1432
1433 typedef uint8_t duk_uint8_t;
1434 typedef int8_t duk_int8_t;
1435 typedef uint16_t duk_uint16_t;
1436 typedef int16_t duk_int16_t;
1437 typedef uint32_t duk_uint32_t;
1438 typedef int32_t duk_int32_t;
1439 typedef uint64_t duk_uint64_t;
1440 typedef int64_t duk_int64_t;
1441 typedef uint_least8_t duk_uint_least8_t;
1442 typedef int_least8_t duk_int_least8_t;
1443 typedef uint_least16_t duk_uint_least16_t;
1444 typedef int_least16_t duk_int_least16_t;
1445 typedef uint_least32_t duk_uint_least32_t;
1446 typedef int_least32_t duk_int_least32_t;
1447 typedef uint_least64_t duk_uint_least64_t;
1448 typedef int_least64_t duk_int_least64_t;
1449 typedef uint_fast8_t duk_uint_fast8_t;
1450 typedef int_fast8_t duk_int_fast8_t;
1451 typedef uint_fast16_t duk_uint_fast16_t;
1452 typedef int_fast16_t duk_int_fast16_t;
1453 typedef uint_fast32_t duk_uint_fast32_t;
1454 typedef int_fast32_t duk_int_fast32_t;
1455 typedef uint_fast64_t duk_uint_fast64_t;
1456 typedef int_fast64_t duk_int_fast64_t;
1457 typedef uintptr_t duk_uintptr_t;
1458 typedef intptr_t duk_intptr_t;
1459 typedef uintmax_t duk_uintmax_t;
1460 typedef intmax_t duk_intmax_t;
1461
1462 #define DUK_UINT8_MIN         0
1463 #define DUK_UINT8_MAX         UINT8_MAX
1464 #define DUK_INT8_MIN          INT8_MIN
1465 #define DUK_INT8_MAX          INT8_MAX
1466 #define DUK_UINT_LEAST8_MIN   0
1467 #define DUK_UINT_LEAST8_MAX   UINT_LEAST8_MAX
1468 #define DUK_INT_LEAST8_MIN    INT_LEAST8_MIN
1469 #define DUK_INT_LEAST8_MAX    INT_LEAST8_MAX
1470 #define DUK_UINT_FAST8_MIN    0
1471 #define DUK_UINT_FAST8_MAX    UINT_FAST8_MAX
1472 #define DUK_INT_FAST8_MIN     INT_FAST8_MIN
1473 #define DUK_INT_FAST8_MAX     INT_FAST8_MAX
1474 #define DUK_UINT16_MIN        0
1475 #define DUK_UINT16_MAX        UINT16_MAX
1476 #define DUK_INT16_MIN         INT16_MIN
1477 #define DUK_INT16_MAX         INT16_MAX
1478 #define DUK_UINT_LEAST16_MIN  0
1479 #define DUK_UINT_LEAST16_MAX  UINT_LEAST16_MAX
1480 #define DUK_INT_LEAST16_MIN   INT_LEAST16_MIN
1481 #define DUK_INT_LEAST16_MAX   INT_LEAST16_MAX
1482 #define DUK_UINT_FAST16_MIN   0
1483 #define DUK_UINT_FAST16_MAX   UINT_FAST16_MAX
1484 #define DUK_INT_FAST16_MIN    INT_FAST16_MIN
1485 #define DUK_INT_FAST16_MAX    INT_FAST16_MAX
1486 #define DUK_UINT32_MIN        0
1487 #define DUK_UINT32_MAX        UINT32_MAX
1488 #define DUK_INT32_MIN         INT32_MIN
1489 #define DUK_INT32_MAX         INT32_MAX
1490 #define DUK_UINT_LEAST32_MIN  0
1491 #define DUK_UINT_LEAST32_MAX  UINT_LEAST32_MAX
1492 #define DUK_INT_LEAST32_MIN   INT_LEAST32_MIN
1493 #define DUK_INT_LEAST32_MAX   INT_LEAST32_MAX
1494 #define DUK_UINT_FAST32_MIN   0
1495 #define DUK_UINT_FAST32_MAX   UINT_FAST32_MAX
1496 #define DUK_INT_FAST32_MIN    INT_FAST32_MIN
1497 #define DUK_INT_FAST32_MAX    INT_FAST32_MAX
1498 #define DUK_UINT64_MIN        0
1499 #define DUK_UINT64_MAX        UINT64_MAX
1500 #define DUK_INT64_MIN         INT64_MIN
1501 #define DUK_INT64_MAX         INT64_MAX
1502 #define DUK_UINT_LEAST64_MIN  0
1503 #define DUK_UINT_LEAST64_MAX  UINT_LEAST64_MAX
1504 #define DUK_INT_LEAST64_MIN   INT_LEAST64_MIN
1505 #define DUK_INT_LEAST64_MAX   INT_LEAST64_MAX
1506 #define DUK_UINT_FAST64_MIN   0
1507 #define DUK_UINT_FAST64_MAX   UINT_FAST64_MAX
1508 #define DUK_INT_FAST64_MIN    INT_FAST64_MIN
1509 #define DUK_INT_FAST64_MAX    INT_FAST64_MAX
1510
1511 #define DUK_UINTPTR_MIN       0
1512 #define DUK_UINTPTR_MAX       UINTPTR_MAX
1513 #define DUK_INTPTR_MIN        INTPTR_MIN
1514 #define DUK_INTPTR_MAX        INTPTR_MAX
1515
1516 #define DUK_UINTMAX_MIN       0
1517 #define DUK_UINTMAX_MAX       UINTMAX_MAX
1518 #define DUK_INTMAX_MIN        INTMAX_MIN
1519 #define DUK_INTMAX_MAX        INTMAX_MAX
1520
1521 #define DUK_SIZE_MIN          0
1522 #define DUK_SIZE_MAX          SIZE_MAX
1523 #undef DUK_SIZE_MAX_COMPUTED
1524
1525 #else  /* C99 types */
1526
1527 /* When C99 types are not available, we use heuristic detection to get
1528  * the basic 8, 16, 32, and (possibly) 64 bit types.  The fast/least
1529  * types are then assumed to be exactly the same for now: these could
1530  * be improved per platform but C99 types are very often now available.
1531  * 64-bit types are not available on all platforms; this is OK at least
1532  * on 32-bit platforms.
1533  *
1534  * This detection code is necessarily a bit hacky and can provide typedefs
1535  * and defines that won't work correctly on some exotic platform.
1536  */
1537
1538 #if (defined(CHAR_BIT) && (CHAR_BIT == 8)) || \
1539     (defined(UCHAR_MAX) && (UCHAR_MAX == 255))
1540 typedef unsigned char duk_uint8_t;
1541 typedef signed char duk_int8_t;
1542 #else
1543 #error cannot detect 8-bit type
1544 #endif
1545
1546 #if defined(USHRT_MAX) && (USHRT_MAX == 65535UL)
1547 typedef unsigned short duk_uint16_t;
1548 typedef signed short duk_int16_t;
1549 #elif defined(UINT_MAX) && (UINT_MAX == 65535UL)
1550 /* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1551 typedef unsigned int duk_uint16_t;
1552 typedef signed int duk_int16_t;
1553 #else
1554 #error cannot detect 16-bit type
1555 #endif
1556
1557 #if defined(UINT_MAX) && (UINT_MAX == 4294967295UL)
1558 typedef unsigned int duk_uint32_t;
1559 typedef signed int duk_int32_t;
1560 #elif defined(ULONG_MAX) && (ULONG_MAX == 4294967295UL)
1561 /* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1562 typedef unsigned long duk_uint32_t;
1563 typedef signed long duk_int32_t;
1564 #else
1565 #error cannot detect 32-bit type
1566 #endif
1567
1568 /* 64-bit type detection is a bit tricky.
1569  *
1570  * ULLONG_MAX is a standard define.  __LONG_LONG_MAX__ and __ULONG_LONG_MAX__
1571  * are used by at least GCC (even if system headers don't provide ULLONG_MAX).
1572  * Some GCC variants may provide __LONG_LONG_MAX__ but not __ULONG_LONG_MAX__.
1573  *
1574  * ULL / LL constants are rejected / warned about by some compilers, even if
1575  * the compiler has a 64-bit type and the compiler/system headers provide an
1576  * unsupported constant (ULL/LL)!  Try to avoid using ULL / LL constants.
1577  * As a side effect we can only check that e.g. ULONG_MAX is larger than 32
1578  * bits but can't be sure it is exactly 64 bits.  Self tests will catch such
1579  * cases.
1580  */
1581 #undef DUK_F_HAVE_64BIT
1582 #if !defined(DUK_F_HAVE_64BIT) && defined(ULONG_MAX)
1583 #if (ULONG_MAX > 4294967295UL)
1584 #define DUK_F_HAVE_64BIT
1585 typedef unsigned long duk_uint64_t;
1586 typedef signed long duk_int64_t;
1587 #endif
1588 #endif
1589 #if !defined(DUK_F_HAVE_64BIT) && defined(ULLONG_MAX)
1590 #if (ULLONG_MAX > 4294967295UL)
1591 #define DUK_F_HAVE_64BIT
1592 typedef unsigned long long duk_uint64_t;
1593 typedef signed long long duk_int64_t;
1594 #endif
1595 #endif
1596 #if !defined(DUK_F_HAVE_64BIT) && defined(__ULONG_LONG_MAX__)
1597 #if (__ULONG_LONG_MAX__ > 4294967295UL)
1598 #define DUK_F_HAVE_64BIT
1599 typedef unsigned long long duk_uint64_t;
1600 typedef signed long long duk_int64_t;
1601 #endif
1602 #endif
1603 #if !defined(DUK_F_HAVE_64BIT) && defined(__LONG_LONG_MAX__)
1604 #if (__LONG_LONG_MAX__ > 2147483647L)
1605 #define DUK_F_HAVE_64BIT
1606 typedef unsigned long long duk_uint64_t;
1607 typedef signed long long duk_int64_t;
1608 #endif
1609 #endif
1610 #if !defined(DUK_F_HAVE_64BIT) && \
1611     (defined(DUK_F_MINGW) || defined(DUK_F_MSVC))
1612 /* Both MinGW and MSVC have a 64-bit type. */
1613 #define DUK_F_HAVE_64BIT
1614 typedef unsigned long duk_uint64_t;
1615 typedef signed long duk_int64_t;
1616 #endif
1617 #if !defined(DUK_F_HAVE_64BIT)
1618 /* cannot detect 64-bit type, not always needed so don't error */
1619 #endif
1620
1621 typedef duk_uint8_t duk_uint_least8_t;
1622 typedef duk_int8_t duk_int_least8_t;
1623 typedef duk_uint16_t duk_uint_least16_t;
1624 typedef duk_int16_t duk_int_least16_t;
1625 typedef duk_uint32_t duk_uint_least32_t;
1626 typedef duk_int32_t duk_int_least32_t;
1627 typedef duk_uint8_t duk_uint_fast8_t;
1628 typedef duk_int8_t duk_int_fast8_t;
1629 typedef duk_uint16_t duk_uint_fast16_t;
1630 typedef duk_int16_t duk_int_fast16_t;
1631 typedef duk_uint32_t duk_uint_fast32_t;
1632 typedef duk_int32_t duk_int_fast32_t;
1633 #if defined(DUK_F_HAVE_64BIT)
1634 typedef duk_uint64_t duk_uint_least64_t;
1635 typedef duk_int64_t duk_int_least64_t;
1636 typedef duk_uint64_t duk_uint_fast64_t;
1637 typedef duk_int64_t duk_int_fast64_t;
1638 #endif
1639 #if defined(DUK_F_HAVE_64BIT)
1640 typedef duk_uint64_t duk_uintmax_t;
1641 typedef duk_int64_t duk_intmax_t;
1642 #else
1643 typedef duk_uint32_t duk_uintmax_t;
1644 typedef duk_int32_t duk_intmax_t;
1645 #endif
1646
1647 /* Note: the funny looking computations for signed minimum 16-bit, 32-bit, and
1648  * 64-bit values are intentional as the obvious forms (e.g. -0x80000000L) are
1649  * -not- portable.  See code-issues.txt for a detailed discussion.
1650  */
1651 #define DUK_UINT8_MIN         0UL
1652 #define DUK_UINT8_MAX         0xffUL
1653 #define DUK_INT8_MIN          (-0x80L)
1654 #define DUK_INT8_MAX          0x7fL
1655 #define DUK_UINT_LEAST8_MIN   0UL
1656 #define DUK_UINT_LEAST8_MAX   0xffUL
1657 #define DUK_INT_LEAST8_MIN    (-0x80L)
1658 #define DUK_INT_LEAST8_MAX    0x7fL
1659 #define DUK_UINT_FAST8_MIN    0UL
1660 #define DUK_UINT_FAST8_MAX    0xffUL
1661 #define DUK_INT_FAST8_MIN     (-0x80L)
1662 #define DUK_INT_FAST8_MAX     0x7fL
1663 #define DUK_UINT16_MIN        0UL
1664 #define DUK_UINT16_MAX        0xffffUL
1665 #define DUK_INT16_MIN         (-0x7fffL - 1L)
1666 #define DUK_INT16_MAX         0x7fffL
1667 #define DUK_UINT_LEAST16_MIN  0UL
1668 #define DUK_UINT_LEAST16_MAX  0xffffUL
1669 #define DUK_INT_LEAST16_MIN   (-0x7fffL - 1L)
1670 #define DUK_INT_LEAST16_MAX   0x7fffL
1671 #define DUK_UINT_FAST16_MIN   0UL
1672 #define DUK_UINT_FAST16_MAX   0xffffUL
1673 #define DUK_INT_FAST16_MIN    (-0x7fffL - 1L)
1674 #define DUK_INT_FAST16_MAX    0x7fffL
1675 #define DUK_UINT32_MIN        0UL
1676 #define DUK_UINT32_MAX        0xffffffffUL
1677 #define DUK_INT32_MIN         (-0x7fffffffL - 1L)
1678 #define DUK_INT32_MAX         0x7fffffffL
1679 #define DUK_UINT_LEAST32_MIN  0UL
1680 #define DUK_UINT_LEAST32_MAX  0xffffffffUL
1681 #define DUK_INT_LEAST32_MIN   (-0x7fffffffL - 1L)
1682 #define DUK_INT_LEAST32_MAX   0x7fffffffL
1683 #define DUK_UINT_FAST32_MIN   0UL
1684 #define DUK_UINT_FAST32_MAX   0xffffffffUL
1685 #define DUK_INT_FAST32_MIN    (-0x7fffffffL - 1L)
1686 #define DUK_INT_FAST32_MAX    0x7fffffffL
1687
1688 /* 64-bit constants.  Since LL / ULL constants are not always available,
1689  * use computed values.  These values can't be used in preprocessor
1690  * comparisons; flag them as such.
1691  */
1692 #if defined(DUK_F_HAVE_64BIT)
1693 #define DUK_UINT64_MIN        ((duk_uint64_t) 0)
1694 #define DUK_UINT64_MAX        ((duk_uint64_t) -1)
1695 #define DUK_INT64_MIN         ((duk_int64_t) (~(DUK_UINT64_MAX >> 1)))
1696 #define DUK_INT64_MAX         ((duk_int64_t) (DUK_UINT64_MAX >> 1))
1697 #define DUK_UINT_LEAST64_MIN  DUK_UINT64_MIN
1698 #define DUK_UINT_LEAST64_MAX  DUK_UINT64_MAX
1699 #define DUK_INT_LEAST64_MIN   DUK_INT64_MIN
1700 #define DUK_INT_LEAST64_MAX   DUK_INT64_MAX
1701 #define DUK_UINT_FAST64_MIN   DUK_UINT64_MIN
1702 #define DUK_UINT_FAST64_MAX   DUK_UINT64_MAX
1703 #define DUK_INT_FAST64_MIN    DUK_INT64_MIN
1704 #define DUK_INT_FAST64_MAX    DUK_INT64_MAX
1705 #define DUK_UINT64_MIN_COMPUTED
1706 #define DUK_UINT64_MAX_COMPUTED
1707 #define DUK_INT64_MIN_COMPUTED
1708 #define DUK_INT64_MAX_COMPUTED
1709 #define DUK_UINT_LEAST64_MIN_COMPUTED
1710 #define DUK_UINT_LEAST64_MAX_COMPUTED
1711 #define DUK_INT_LEAST64_MIN_COMPUTED
1712 #define DUK_INT_LEAST64_MAX_COMPUTED
1713 #define DUK_UINT_FAST64_MIN_COMPUTED
1714 #define DUK_UINT_FAST64_MAX_COMPUTED
1715 #define DUK_INT_FAST64_MIN_COMPUTED
1716 #define DUK_INT_FAST64_MAX_COMPUTED
1717 #endif
1718
1719 #if defined(DUK_F_HAVE_64BIT)
1720 #define DUK_UINTMAX_MIN       DUK_UINT64_MIN
1721 #define DUK_UINTMAX_MAX       DUK_UINT64_MAX
1722 #define DUK_INTMAX_MIN        DUK_INT64_MIN
1723 #define DUK_INTMAX_MAX        DUK_INT64_MAX
1724 #define DUK_UINTMAX_MIN_COMPUTED
1725 #define DUK_UINTMAX_MAX_COMPUTED
1726 #define DUK_INTMAX_MIN_COMPUTED
1727 #define DUK_INTMAX_MAX_COMPUTED
1728 #else
1729 #define DUK_UINTMAX_MIN       0UL
1730 #define DUK_UINTMAX_MAX       0xffffffffUL
1731 #define DUK_INTMAX_MIN        (-0x7fffffffL - 1L)
1732 #define DUK_INTMAX_MAX        0x7fffffffL
1733 #endif
1734
1735 /* This detection is not very reliable. */
1736 #if defined(DUK_F_32BIT_PTRS)
1737 typedef duk_int32_t duk_intptr_t;
1738 typedef duk_uint32_t duk_uintptr_t;
1739 #define DUK_UINTPTR_MIN       DUK_UINT32_MIN
1740 #define DUK_UINTPTR_MAX       DUK_UINT32_MAX
1741 #define DUK_INTPTR_MIN        DUK_INT32_MIN
1742 #define DUK_INTPTR_MAX        DUK_INT32_MAX
1743 #elif defined(DUK_F_64BIT_PTRS) && defined(DUK_F_HAVE_64BIT)
1744 typedef duk_int64_t duk_intptr_t;
1745 typedef duk_uint64_t duk_uintptr_t;
1746 #define DUK_UINTPTR_MIN       DUK_UINT64_MIN
1747 #define DUK_UINTPTR_MAX       DUK_UINT64_MAX
1748 #define DUK_INTPTR_MIN        DUK_INT64_MIN
1749 #define DUK_INTPTR_MAX        DUK_INT64_MAX
1750 #define DUK_UINTPTR_MIN_COMPUTED
1751 #define DUK_UINTPTR_MAX_COMPUTED
1752 #define DUK_INTPTR_MIN_COMPUTED
1753 #define DUK_INTPTR_MAX_COMPUTED
1754 #else
1755 #error cannot determine intptr type
1756 #endif
1757
1758 /* SIZE_MAX may be missing so use an approximate value for it. */
1759 #undef DUK_SIZE_MAX_COMPUTED
1760 #if !defined(SIZE_MAX)
1761 #define DUK_SIZE_MAX_COMPUTED
1762 #define SIZE_MAX              ((size_t) (-1))
1763 #endif
1764 #define DUK_SIZE_MIN          0
1765 #define DUK_SIZE_MAX          SIZE_MAX
1766
1767 #endif  /* C99 types */
1768
1769 /* A few types are assumed to always exist. */
1770 typedef size_t duk_size_t;
1771 typedef ptrdiff_t duk_ptrdiff_t;
1772
1773 /* The best type for an "all around int" in Duktape internals is "at least
1774  * 32 bit signed integer" which is most convenient.  Same for unsigned type.
1775  * Prefer 'int' when large enough, as it is almost always a convenient type.
1776  */
1777 #if defined(UINT_MAX) && (UINT_MAX >= 0xffffffffUL)
1778 typedef int duk_int_t;
1779 typedef unsigned int duk_uint_t;
1780 #define DUK_INT_MIN           INT_MIN
1781 #define DUK_INT_MAX           INT_MAX
1782 #define DUK_UINT_MIN          0
1783 #define DUK_UINT_MAX          UINT_MAX
1784 #else
1785 typedef duk_int_fast32_t duk_int_t;
1786 typedef duk_uint_fast32_t duk_uint_t;
1787 #define DUK_INT_MIN           DUK_INT_FAST32_MIN
1788 #define DUK_INT_MAX           DUK_INT_FAST32_MAX
1789 #define DUK_UINT_MIN          DUK_UINT_FAST32_MIN
1790 #define DUK_UINT_MAX          DUK_UINT_FAST32_MAX
1791 #endif
1792
1793 /* Same as 'duk_int_t' but guaranteed to be a 'fast' variant if this
1794  * distinction matters for the CPU.  These types are used mainly in the
1795  * executor where it might really matter.
1796  */
1797 typedef duk_int_fast32_t duk_int_fast_t;
1798 typedef duk_uint_fast32_t duk_uint_fast_t;
1799 #define DUK_INT_FAST_MIN      DUK_INT_FAST32_MIN
1800 #define DUK_INT_FAST_MAX      DUK_INT_FAST32_MAX
1801 #define DUK_UINT_FAST_MIN     DUK_UINT_FAST32_MIN
1802 #define DUK_UINT_FAST_MAX     DUK_UINT_FAST32_MAX
1803
1804 /* Small integers (16 bits or more) can fall back to the 'int' type, but
1805  * have a typedef so they are marked "small" explicitly.
1806  */
1807 typedef int duk_small_int_t;
1808 typedef unsigned int duk_small_uint_t;
1809 #define DUK_SMALL_INT_MIN     INT_MIN
1810 #define DUK_SMALL_INT_MAX     INT_MAX
1811 #define DUK_SMALL_UINT_MIN    0
1812 #define DUK_SMALL_UINT_MAX    UINT_MAX
1813
1814 /* Fast variants of small integers, again for really fast paths like the
1815  * executor.
1816  */
1817 typedef duk_int_fast16_t duk_small_int_fast_t;
1818 typedef duk_uint_fast16_t duk_small_uint_fast_t;
1819 #define DUK_SMALL_INT_FAST_MIN    DUK_INT_FAST16_MIN
1820 #define DUK_SMALL_INT_FAST_MAX    DUK_INT_FAST16_MAX
1821 #define DUK_SMALL_UINT_FAST_MIN   DUK_UINT_FAST16_MIN
1822 #define DUK_SMALL_UINT_FAST_MAX   DUK_UINT_FAST16_MAX
1823
1824 /* Boolean values are represented with the platform 'int'. */
1825 typedef duk_small_int_t duk_bool_t;
1826 #define DUK_BOOL_MIN              DUK_SMALL_INT_MIN
1827 #define DUK_BOOL_MAX              DUK_SMALL_INT_MAX
1828
1829 /* Index values must have at least 32-bit signed range. */
1830 typedef duk_int_t duk_idx_t;
1831 #define DUK_IDX_MIN               DUK_INT_MIN
1832 #define DUK_IDX_MAX               DUK_INT_MAX
1833
1834 /* Unsigned index variant. */
1835 typedef duk_uint_t duk_uidx_t;
1836 #define DUK_UIDX_MIN              DUK_UINT_MIN
1837 #define DUK_UIDX_MAX              DUK_UINT_MAX
1838
1839 /* Array index values, could be exact 32 bits.
1840  * Currently no need for signed duk_arridx_t.
1841  */
1842 typedef duk_uint_t duk_uarridx_t;
1843 #define DUK_UARRIDX_MIN           DUK_UINT_MIN
1844 #define DUK_UARRIDX_MAX           DUK_UINT_MAX
1845
1846 /* Duktape/C function return value, platform int is enough for now to
1847  * represent 0, 1, or negative error code.  Must be compatible with
1848  * assigning truth values (e.g. duk_ret_t rc = (foo == bar);).
1849  */
1850 typedef duk_small_int_t duk_ret_t;
1851 #define DUK_RET_MIN               DUK_SMALL_INT_MIN
1852 #define DUK_RET_MAX               DUK_SMALL_INT_MAX
1853
1854 /* Error codes are represented with platform int.  High bits are used
1855  * for flags and such, so 32 bits are needed.
1856  */
1857 typedef duk_int_t duk_errcode_t;
1858 #define DUK_ERRCODE_MIN           DUK_INT_MIN
1859 #define DUK_ERRCODE_MAX           DUK_INT_MAX
1860
1861 /* Codepoint type.  Must be 32 bits or more because it is used also for
1862  * internal codepoints.  The type is signed because negative codepoints
1863  * are used as internal markers (e.g. to mark EOF or missing argument).
1864  * (X)UTF-8/CESU-8 encode/decode take and return an unsigned variant to
1865  * ensure duk_uint32_t casts back and forth nicely.  Almost everything
1866  * else uses the signed one.
1867  */
1868 typedef duk_int_t duk_codepoint_t;
1869 typedef duk_uint_t duk_ucodepoint_t;
1870 #define DUK_CODEPOINT_MIN         DUK_INT_MIN
1871 #define DUK_CODEPOINT_MAX         DUK_INT_MAX
1872 #define DUK_UCODEPOINT_MIN        DUK_UINT_MIN
1873 #define DUK_UCODEPOINT_MAX        DUK_UINT_MAX
1874
1875 /* IEEE float/double typedef. */
1876 typedef float duk_float_t;
1877 typedef double duk_double_t;
1878
1879 /* We're generally assuming that we're working on a platform with a 32-bit
1880  * address space.  If DUK_SIZE_MAX is a typecast value (which is necessary
1881  * if SIZE_MAX is missing), the check must be avoided because the
1882  * preprocessor can't do a comparison.
1883  */
1884 #if !defined(DUK_SIZE_MAX)
1885 #error DUK_SIZE_MAX is undefined, probably missing SIZE_MAX
1886 #elif !defined(DUK_SIZE_MAX_COMPUTED)
1887 #if DUK_SIZE_MAX < 0xffffffffUL
1888 /* On some systems SIZE_MAX can be smaller than max unsigned 32-bit value
1889  * which seems incorrect if size_t is (at least) an unsigned 32-bit type.
1890  * However, it doesn't seem useful to error out compilation if this is the
1891  * case.
1892  */
1893 #endif
1894 #endif
1895
1896 /* Type for public API calls. */
1897 typedef struct duk_hthread duk_context;
1898
1899 /* Check whether we should use 64-bit integers or not.
1900  *
1901  * Quite incomplete now.  Use 64-bit types if detected (C99 or other detection)
1902  * unless they are known to be unreliable.  For instance, 64-bit types are
1903  * available on VBCC but seem to misbehave.
1904  */
1905 #if defined(DUK_F_HAVE_64BIT) && !defined(DUK_F_VBCC)
1906 #define DUK_USE_64BIT_OPS
1907 #else
1908 #undef DUK_USE_64BIT_OPS
1909 #endif
1910
1911 /*
1912  *  Fill-ins for platform, architecture, and compiler
1913  */
1914
1915 #if !defined(DUK_SETJMP)
1916 #define DUK_JMPBUF_TYPE       jmp_buf
1917 #define DUK_SETJMP(jb)        setjmp((jb))
1918 #define DUK_LONGJMP(jb)       longjmp((jb), 1)
1919 #endif
1920
1921 #if 0
1922 /* sigsetjmp() alternative */
1923 #define DUK_JMPBUF_TYPE       sigjmp_buf
1924 #define DUK_SETJMP(jb)        sigsetjmp((jb))
1925 #define DUK_LONGJMP(jb)       siglongjmp((jb), 1)
1926 #endif
1927
1928 typedef FILE duk_file;
1929 #if !defined(DUK_STDIN)
1930 #define DUK_STDIN       stdin
1931 #endif
1932 #if !defined(DUK_STDOUT)
1933 #define DUK_STDOUT      stdout
1934 #endif
1935 #if !defined(DUK_STDERR)
1936 #define DUK_STDERR      stderr
1937 #endif
1938
1939 /* Special naming to avoid conflict with e.g. DUK_FREE() in duk_heap.h
1940  * (which is unfortunately named).  May sometimes need replacement, e.g.
1941  * some compilers don't handle zero length or NULL correctly in realloc().
1942  */
1943 #if !defined(DUK_ANSI_MALLOC)
1944 #define DUK_ANSI_MALLOC      malloc
1945 #endif
1946 #if !defined(DUK_ANSI_REALLOC)
1947 #define DUK_ANSI_REALLOC     realloc
1948 #endif
1949 #if !defined(DUK_ANSI_CALLOC)
1950 #define DUK_ANSI_CALLOC      calloc
1951 #endif
1952 #if !defined(DUK_ANSI_FREE)
1953 #define DUK_ANSI_FREE        free
1954 #endif
1955
1956 /* ANSI C (various versions) and some implementations require that the
1957  * pointer arguments to memset(), memcpy(), and memmove() be valid values
1958  * even when byte size is 0 (even a NULL pointer is considered invalid in
1959  * this context).  Zero-size operations as such are allowed, as long as their
1960  * pointer arguments point to a valid memory area.  The DUK_MEMSET(),
1961  * DUK_MEMCPY(), and DUK_MEMMOVE() macros require this same behavior, i.e.:
1962  * (1) pointers must be valid and non-NULL, (2) zero size must otherwise be
1963  * allowed.  If these are not fulfilled, a macro wrapper is needed.
1964  *
1965  *   http://stackoverflow.com/questions/5243012/is-it-guaranteed-to-be-safe-to-perform-memcpy0-0-0
1966  *   http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-October/011065.html
1967  *
1968  * Not sure what's the required behavior when a pointer points just past the
1969  * end of a buffer, which often happens in practice (e.g. zero size memmoves).
1970  * For example, if allocation size is 3, the following pointer would not
1971  * technically point to a valid memory byte:
1972  *
1973  *   <-- alloc -->
1974  *   | 0 | 1 | 2 | .....
1975  *                 ^-- p=3, points after last valid byte (2)
1976  */
1977 #if !defined(DUK_MEMCPY)
1978 #if defined(DUK_F_UCLIBC)
1979 /* Old uclibcs have a broken memcpy so use memmove instead (this is overly wide
1980  * now on purpose): http://lists.uclibc.org/pipermail/uclibc-cvs/2008-October/025511.html
1981  */
1982 #define DUK_MEMCPY       memmove
1983 #else
1984 #define DUK_MEMCPY       memcpy
1985 #endif
1986 #endif
1987 #if !defined(DUK_MEMMOVE)
1988 #define DUK_MEMMOVE      memmove
1989 #endif
1990 #if !defined(DUK_MEMCMP)
1991 #define DUK_MEMCMP       memcmp
1992 #endif
1993 #if !defined(DUK_MEMSET)
1994 #define DUK_MEMSET       memset
1995 #endif
1996 #if !defined(DUK_STRLEN)
1997 #define DUK_STRLEN       strlen
1998 #endif
1999 #if !defined(DUK_STRCMP)
2000 #define DUK_STRCMP       strcmp
2001 #endif
2002 #if !defined(DUK_STRNCMP)
2003 #define DUK_STRNCMP      strncmp
2004 #endif
2005 #if !defined(DUK_PRINTF)
2006 #define DUK_PRINTF       printf
2007 #endif
2008 #if !defined(DUK_FPRINTF)
2009 #define DUK_FPRINTF      fprintf
2010 #endif
2011 #if !defined(DUK_SPRINTF)
2012 #define DUK_SPRINTF      sprintf
2013 #endif
2014 #if !defined(DUK_SNPRINTF)
2015 /* snprintf() is technically not part of C89 but usually available. */
2016 #define DUK_SNPRINTF     snprintf
2017 #endif
2018 #if !defined(DUK_VSPRINTF)
2019 #define DUK_VSPRINTF     vsprintf
2020 #endif
2021 #if !defined(DUK_VSNPRINTF)
2022 /* vsnprintf() is technically not part of C89 but usually available. */
2023 #define DUK_VSNPRINTF    vsnprintf
2024 #endif
2025 #if !defined(DUK_SSCANF)
2026 #define DUK_SSCANF       sscanf
2027 #endif
2028 #if !defined(DUK_VSSCANF)
2029 #define DUK_VSSCANF      vsscanf
2030 #endif
2031 #if !defined(DUK_FOPEN)
2032 #define DUK_FOPEN        fopen
2033 #endif
2034 #if !defined(DUK_FCLOSE)
2035 #define DUK_FCLOSE       fclose
2036 #endif
2037 #if !defined(DUK_FREAD)
2038 #define DUK_FREAD        fread
2039 #endif
2040 #if !defined(DUK_FWRITE)
2041 #define DUK_FWRITE       fwrite
2042 #endif
2043 #if !defined(DUK_FSEEK)
2044 #define DUK_FSEEK        fseek
2045 #endif
2046 #if !defined(DUK_FTELL)
2047 #define DUK_FTELL        ftell
2048 #endif
2049 #if !defined(DUK_FFLUSH)
2050 #define DUK_FFLUSH       fflush
2051 #endif
2052 #if !defined(DUK_FPUTC)
2053 #define DUK_FPUTC        fputc
2054 #endif
2055 #if !defined(DUK_MEMZERO)
2056 #define DUK_MEMZERO(p,n) DUK_MEMSET((p), 0, (n))
2057 #endif
2058 #if !defined(DUK_ABORT)
2059 #define DUK_ABORT        abort
2060 #endif
2061 #if !defined(DUK_EXIT)
2062 #define DUK_EXIT         exit
2063 #endif
2064
2065 #if !defined(DUK_DOUBLE_2TO32)
2066 #define DUK_DOUBLE_2TO32     4294967296.0
2067 #endif
2068 #if !defined(DUK_DOUBLE_2TO31)
2069 #define DUK_DOUBLE_2TO31     2147483648.0
2070 #endif
2071
2072 #if !defined(DUK_DOUBLE_INFINITY)
2073 #undef DUK_USE_COMPUTED_INFINITY
2074 #if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION < 40600)
2075 /* GCC older than 4.6: avoid overflow warnings related to using INFINITY */
2076 #define DUK_DOUBLE_INFINITY  (__builtin_inf())
2077 #elif defined(INFINITY)
2078 #define DUK_DOUBLE_INFINITY  ((double) INFINITY)
2079 #elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC)
2080 #define DUK_DOUBLE_INFINITY  (1.0 / 0.0)
2081 #else
2082 /* In VBCC (1.0 / 0.0) results in a warning and 0.0 instead of infinity.
2083  * Use a computed infinity (initialized when a heap is created at the
2084  * latest).
2085  */
2086 #define DUK_USE_COMPUTED_INFINITY
2087 #define DUK_DOUBLE_INFINITY  duk_computed_infinity
2088 #endif
2089 #endif
2090
2091 #if !defined(DUK_DOUBLE_NAN)
2092 #undef DUK_USE_COMPUTED_NAN
2093 #if defined(NAN)
2094 #define DUK_DOUBLE_NAN       NAN
2095 #elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC)
2096 #define DUK_DOUBLE_NAN       (0.0 / 0.0)
2097 #else
2098 /* In VBCC (0.0 / 0.0) results in a warning and 0.0 instead of NaN.
2099  * In MSVC (VS2010 Express) (0.0 / 0.0) results in a compile error.
2100  * Use a computed NaN (initialized when a heap is created at the
2101  * latest).
2102  */
2103 #define DUK_USE_COMPUTED_NAN
2104 #define DUK_DOUBLE_NAN       duk_computed_nan
2105 #endif
2106 #endif
2107
2108 /* Many platforms are missing fpclassify() and friends, so use replacements
2109  * if necessary.  The replacement constants (FP_NAN etc) can be anything but
2110  * match Linux constants now.
2111  */
2112 #undef DUK_USE_REPL_FPCLASSIFY
2113 #undef DUK_USE_REPL_SIGNBIT
2114 #undef DUK_USE_REPL_ISFINITE
2115 #undef DUK_USE_REPL_ISNAN
2116 #undef DUK_USE_REPL_ISINF
2117
2118 /* Complex condition broken into separate parts. */
2119 #undef DUK_F_USE_REPL_ALL
2120 #if !(defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO) && \
2121       defined(FP_SUBNORMAL) && defined(FP_NORMAL))
2122 /* Missing some obvious constants. */
2123 #define DUK_F_USE_REPL_ALL
2124 #elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)
2125 /* VBCC is missing the built-ins even in C99 mode (perhaps a header issue). */
2126 #define DUK_F_USE_REPL_ALL
2127 #elif defined(DUK_F_AMIGAOS) && defined(DUK_F_M68K)
2128 /* AmigaOS + M68K seems to have math issues even when using GCC cross
2129  * compilation.  Use replacements for all AmigaOS versions on M68K
2130  * regardless of compiler.
2131  */
2132 #define DUK_F_USE_REPL_ALL
2133 #elif defined(DUK_F_FREEBSD) && defined(DUK_F_CLANG)
2134 /* Placeholder fix for (detection is wider than necessary):
2135  * http://llvm.org/bugs/show_bug.cgi?id=17788
2136  */
2137 #define DUK_F_USE_REPL_ALL
2138 #elif defined(DUK_F_UCLIBC)
2139 /* At least some uclibc versions have broken floating point math.  For
2140  * example, fpclassify() can incorrectly classify certain NaN formats.
2141  * To be safe, use replacements.
2142  */
2143 #define DUK_F_USE_REPL_ALL
2144 #endif
2145
2146 #if defined(DUK_F_USE_REPL_ALL)
2147 #define DUK_USE_REPL_FPCLASSIFY
2148 #define DUK_USE_REPL_SIGNBIT
2149 #define DUK_USE_REPL_ISFINITE
2150 #define DUK_USE_REPL_ISNAN
2151 #define DUK_USE_REPL_ISINF
2152 #define DUK_FPCLASSIFY       duk_repl_fpclassify
2153 #define DUK_SIGNBIT          duk_repl_signbit
2154 #define DUK_ISFINITE         duk_repl_isfinite
2155 #define DUK_ISNAN            duk_repl_isnan
2156 #define DUK_ISINF            duk_repl_isinf
2157 #define DUK_FP_NAN           0
2158 #define DUK_FP_INFINITE      1
2159 #define DUK_FP_ZERO          2
2160 #define DUK_FP_SUBNORMAL     3
2161 #define DUK_FP_NORMAL        4
2162 #else
2163 #define DUK_FPCLASSIFY       fpclassify
2164 #define DUK_SIGNBIT          signbit
2165 #define DUK_ISFINITE         isfinite
2166 #define DUK_ISNAN            isnan
2167 #define DUK_ISINF            isinf
2168 #define DUK_FP_NAN           FP_NAN
2169 #define DUK_FP_INFINITE      FP_INFINITE
2170 #define DUK_FP_ZERO          FP_ZERO
2171 #define DUK_FP_SUBNORMAL     FP_SUBNORMAL
2172 #define DUK_FP_NORMAL        FP_NORMAL
2173 #endif
2174
2175 #if defined(DUK_F_USE_REPL_ALL)
2176 #undef DUK_F_USE_REPL_ALL
2177 #endif
2178
2179 /* Some math functions are C99 only.  This is also an issue with some
2180  * embedded environments using uclibc where uclibc has been configured
2181  * not to provide some functions.  For now, use replacements whenever
2182  * using uclibc.
2183  */
2184 #undef DUK_USE_MATH_FMIN
2185 #undef DUK_USE_MATH_FMAX
2186 #undef DUK_USE_MATH_ROUND
2187 #if defined(DUK_F_UCLIBC)
2188 /* uclibc may be missing these */
2189 #elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)
2190 /* vbcc + AmigaOS may be missing these */
2191 #elif defined(DUK_F_MINT)
2192 /* mint clib is missing these */
2193 #elif !defined(DUK_F_C99) && !defined(DUK_F_CPP11)
2194 /* build is not C99 or C++11, play it safe */
2195 #else
2196 /* C99 or C++11, no known issues */
2197 #define DUK_USE_MATH_FMIN
2198 #define DUK_USE_MATH_FMAX
2199 #define DUK_USE_MATH_ROUND
2200 #endif
2201
2202 /* These functions don't currently need replacement but are wrapped for
2203  * completeness.  Because these are used as function pointers, they need
2204  * to be defined as concrete C functions (not macros).
2205  */
2206 #if !defined(DUK_FABS)
2207 #define DUK_FABS             fabs
2208 #endif
2209 #if !defined(DUK_FMIN)
2210 #define DUK_FMIN             fmin
2211 #endif
2212 #if !defined(DUK_FMAX)
2213 #define DUK_FMAX             fmax
2214 #endif
2215 #if !defined(DUK_FLOOR)
2216 #define DUK_FLOOR            floor
2217 #endif
2218 #if !defined(DUK_CEIL)
2219 #define DUK_CEIL             ceil
2220 #endif
2221 #if !defined(DUK_FMOD)
2222 #define DUK_FMOD             fmod
2223 #endif
2224 #if !defined(DUK_POW)
2225 #define DUK_POW              pow
2226 #endif
2227 #if !defined(DUK_ACOS)
2228 #define DUK_ACOS             acos
2229 #endif
2230 #if !defined(DUK_ASIN)
2231 #define DUK_ASIN             asin
2232 #endif
2233 #if !defined(DUK_ATAN)
2234 #define DUK_ATAN             atan
2235 #endif
2236 #if !defined(DUK_ATAN2)
2237 #define DUK_ATAN2            atan2
2238 #endif
2239 #if !defined(DUK_SIN)
2240 #define DUK_SIN              sin
2241 #endif
2242 #if !defined(DUK_COS)
2243 #define DUK_COS              cos
2244 #endif
2245 #if !defined(DUK_TAN)
2246 #define DUK_TAN              tan
2247 #endif
2248 #if !defined(DUK_EXP)
2249 #define DUK_EXP              exp
2250 #endif
2251 #if !defined(DUK_LOG)
2252 #define DUK_LOG              log
2253 #endif
2254 #if !defined(DUK_SQRT)
2255 #define DUK_SQRT             sqrt
2256 #endif
2257
2258 /* NetBSD 6.0 x86 (at least) has a few problems with pow() semantics,
2259  * see test-bug-netbsd-math-pow.js.  Use NetBSD specific workaround.
2260  * (This might be a wider problem; if so, generalize the define name.)
2261  */
2262 #undef DUK_USE_POW_NETBSD_WORKAROUND
2263 #if defined(DUK_F_NETBSD)
2264 #define DUK_USE_POW_NETBSD_WORKAROUND
2265 #endif
2266
2267 /* Rely as little as possible on compiler behavior for NaN comparison,
2268  * signed zero handling, etc.  Currently never activated but may be needed
2269  * for broken compilers.
2270  */
2271 #undef DUK_USE_PARANOID_MATH
2272
2273 /* There was a curious bug where test-bi-date-canceling.js would fail e.g.
2274  * on 64-bit Ubuntu, gcc-4.8.1, -m32, and no -std=c99.  Some date computations
2275  * using doubles would be optimized which then broke some corner case tests.
2276  * The problem goes away by adding 'volatile' to the datetime computations.
2277  * Not sure what the actual triggering conditions are, but using this on
2278  * non-C99 systems solves the known issues and has relatively little cost
2279  * on other platforms.
2280  */
2281 #undef DUK_USE_PARANOID_DATE_COMPUTATION
2282 #if !defined(DUK_F_C99)
2283 #define DUK_USE_PARANOID_DATE_COMPUTATION
2284 #endif
2285
2286 /*
2287  *  Byte order and double memory layout detection
2288  *
2289  *  Endianness detection is a major portability hassle because the macros
2290  *  and headers are not standardized.  There's even variance across UNIX
2291  *  platforms.  Even with "standard" headers, details like underscore count
2292  *  varies between platforms, e.g. both __BYTE_ORDER and _BYTE_ORDER are used
2293  *  (Crossbridge has a single underscore, for instance).
2294  *
2295  *  The checks below are structured with this in mind: several approaches are
2296  *  used, and at the end we check if any of them worked.  This allows generic
2297  *  approaches to be tried first, and platform/compiler specific hacks tried
2298  *  last.  As a last resort, the user can force a specific endianness, as it's
2299  *  not likely that automatic detection will work on the most exotic platforms.
2300  *
2301  *  Duktape supports little and big endian machines.  There's also support
2302  *  for a hybrid used by some ARM machines where integers are little endian
2303  *  but IEEE double values use a mixed order (12345678 -> 43218765).  This
2304  *  byte order for doubles is referred to as "mixed endian".
2305  */
2306
2307 /* For custom platforms allow user to define byteorder explicitly.
2308  * Since endianness headers are not standardized, this is a useful
2309  * workaround for custom platforms for which endianness detection
2310  * is not directly supported.  Perhaps custom hardware is used and
2311  * user cannot submit upstream patches.
2312  */
2313 #if defined(DUK_OPT_FORCE_BYTEORDER)
2314 #undef DUK_USE_BYTEORDER
2315 #if (DUK_OPT_FORCE_BYTEORDER == 1)
2316 #define DUK_USE_BYTEORDER 1
2317 #elif (DUK_OPT_FORCE_BYTEORDER == 2)
2318 #define DUK_USE_BYTEORDER 2
2319 #elif (DUK_OPT_FORCE_BYTEORDER == 3)
2320 #define DUK_USE_BYTEORDER 3
2321 #else
2322 #error invalid DUK_OPT_FORCE_BYTEORDER value
2323 #endif
2324 #endif  /* DUK_OPT_FORCE_BYTEORDER */
2325
2326 /* GCC and Clang provide endianness defines as built-in predefines, with
2327  * leading and trailing double underscores (e.g. __BYTE_ORDER__).  See
2328  * output of "make gccpredefs" and "make clangpredefs".  Clang doesn't
2329  * seem to provide __FLOAT_WORD_ORDER__; assume not mixed endian for clang.
2330  * http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
2331  */
2332 #if !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__)
2333 #if defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2334 #if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2335 #define DUK_USE_BYTEORDER 1
2336 #elif defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2337 #define DUK_USE_BYTEORDER 2
2338 #elif !defined(__FLOAT_WORD_ORDER__)
2339 /* Float word order not known, assume not a hybrid. */
2340 #define DUK_USE_BYTEORDER 1
2341 #else
2342 /* Byte order is little endian but cannot determine IEEE double word order. */
2343 #endif  /* float word order */
2344 #elif defined(__ORDER_BIG_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
2345 #if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2346 #define DUK_USE_BYTEORDER 3
2347 #elif !defined(__FLOAT_WORD_ORDER__)
2348 /* Float word order not known, assume not a hybrid. */
2349 #define DUK_USE_BYTEORDER 3
2350 #else
2351 /* Byte order is big endian but cannot determine IEEE double word order. */
2352 #endif  /* float word order */
2353 #else
2354 /* Cannot determine byte order; __ORDER_PDP_ENDIAN__ is related to 32-bit
2355  * integer ordering and is not relevant.
2356  */
2357 #endif  /* integer byte order */
2358 #endif  /* !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__) */
2359
2360 /* More or less standard endianness predefines provided by header files.
2361  * The ARM hybrid case is detected by assuming that __FLOAT_WORD_ORDER
2362  * will be big endian, see: http://lists.mysql.com/internals/443.
2363  * On some platforms some defines may be present with an empty value which
2364  * causes comparisons to fail: https://github.com/svaarala/duktape/issues/453.
2365  */
2366 #if !defined(DUK_USE_BYTEORDER)
2367 #if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN) || \
2368     defined(_BYTE_ORDER) && defined(_LITTLE_ENDIAN) && (_BYTE_ORDER == _LITTLE_ENDIAN) || \
2369     defined(__LITTLE_ENDIAN__)
2370 #if defined(__FLOAT_WORD_ORDER) && defined(__LITTLE_ENDIAN) && (__FLOAT_WORD_ORDER == __LITTLE_ENDIAN) || \
2371     defined(_FLOAT_WORD_ORDER) && defined(_LITTLE_ENDIAN) && (_FLOAT_WORD_ORDER == _LITTLE_ENDIAN)
2372 #define DUK_USE_BYTEORDER 1
2373 #elif defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2374       defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2375 #define DUK_USE_BYTEORDER 2
2376 #elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2377 /* Float word order not known, assume not a hybrid. */
2378 #define DUK_USE_BYTEORDER 1
2379 #else
2380 /* Byte order is little endian but cannot determine IEEE double word order. */
2381 #endif  /* float word order */
2382 #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && (__BYTE_ORDER == __BIG_ENDIAN) || \
2383       defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && (_BYTE_ORDER == _BIG_ENDIAN) || \
2384       defined(__BIG_ENDIAN__)
2385 #if defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2386     defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2387 #define DUK_USE_BYTEORDER 3
2388 #elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2389 /* Float word order not known, assume not a hybrid. */
2390 #define DUK_USE_BYTEORDER 3
2391 #else
2392 /* Byte order is big endian but cannot determine IEEE double word order. */
2393 #endif  /* float word order */
2394 #else
2395 /* Cannot determine byte order. */
2396 #endif  /* integer byte order */
2397 #endif  /* !defined(DUK_USE_BYTEORDER) */
2398
2399 /* QNX gcc cross compiler seems to define e.g. __LITTLEENDIAN__ or __BIGENDIAN__:
2400  *  $ /opt/qnx650/host/linux/x86/usr/bin/i486-pc-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2401  *  67:#define __LITTLEENDIAN__ 1
2402  *  $ /opt/qnx650/host/linux/x86/usr/bin/mips-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2403  *  81:#define __BIGENDIAN__ 1
2404  *  $ /opt/qnx650/host/linux/x86/usr/bin/arm-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2405  *  70:#define __LITTLEENDIAN__ 1
2406  */
2407 #if !defined(DUK_USE_BYTEORDER)
2408 #if defined(__LITTLEENDIAN__)
2409 #define DUK_USE_BYTEORDER 1
2410 #elif defined(__BIGENDIAN__)
2411 #define DUK_USE_BYTEORDER 3
2412 #endif
2413 #endif
2414
2415 /*
2416  *  Alignment requirement and support for unaligned accesses
2417  *
2418  *  Assume unaligned accesses are not supported unless specifically allowed
2419  *  in the target platform.  Some platforms may support unaligned accesses
2420  *  but alignment to 4 or 8 may still be desirable.
2421  */
2422
2423 /* If not provided, use safe default for alignment. */
2424 #if !defined(DUK_USE_ALIGN_BY)
2425 #define DUK_USE_ALIGN_BY 8
2426 #endif
2427
2428 /* User forced alignment to 4 or 8. */
2429 #if defined(DUK_OPT_FORCE_ALIGN)
2430 #undef DUK_USE_ALIGN_BY
2431 #if (DUK_OPT_FORCE_ALIGN == 4)
2432 #define DUK_USE_ALIGN_BY 4
2433 #elif (DUK_OPT_FORCE_ALIGN == 8)
2434 #define DUK_USE_ALIGN_BY 8
2435 #else
2436 #error invalid DUK_OPT_FORCE_ALIGN value
2437 #endif
2438 #endif
2439
2440 /* Compiler specific hackery needed to force struct size to match aligment,
2441  * see e.g. duk_hbuffer.h.
2442  *
2443  * http://stackoverflow.com/questions/11130109/c-struct-size-alignment
2444  * http://stackoverflow.com/questions/10951039/specifying-64-bit-alignment
2445  */
2446 #if !(defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_GCC_ATTR) || \
2447       defined(DUK_USE_PACK_CLANG_ATTR) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2448 #define DUK_USE_PACK_DUMMY_MEMBER
2449 #endif
2450
2451 #if !defined(DUK_VA_COPY)
2452 /* We need va_copy() which is defined in C99 / C++11, so an awkward
2453  * replacement is needed for pre-C99 / pre-C++11 environments.  This
2454  * will quite likely need portability hacks for some non-C99
2455  * environments.
2456  */
2457 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2458 /* C99 / C++11 and above: rely on va_copy() which is required.
2459  * Omit parenthesis on macro right side on purpose to minimize differences
2460  * to direct use.
2461  */
2462 #define DUK_VA_COPY(dest,src) va_copy(dest,src)
2463 #else
2464 /* Pre-C99: va_list type is implementation dependent.  This replacement
2465  * assumes it is a plain value so that a simple assignment will work.
2466  * This is not the case on all platforms (it may be a single-array element,
2467  * for instance).
2468  */
2469 #define DUK_VA_COPY(dest,src) do { (dest) = (src); } while (0)
2470 #endif
2471 #endif
2472
2473 #if !defined(DUK_MACRO_STRINGIFY)
2474 /* Macro hackery to convert e.g. __LINE__ to a string without formatting,
2475  * see: http://stackoverflow.com/questions/240353/convert-a-preprocessor-token-to-a-string
2476  */
2477 #define DUK_MACRO_STRINGIFY_HELPER(x)  #x
2478 #define DUK_MACRO_STRINGIFY(x)  DUK_MACRO_STRINGIFY_HELPER(x)
2479 #endif
2480
2481 #if !defined(DUK_CAUSE_SEGFAULT)
2482 /* This is optionally used by panic handling to cause the program to segfault
2483  * (instead of e.g. abort()) on panic.  Valgrind will then indicate the C
2484  * call stack leading to the panic.
2485  */
2486 #define DUK_CAUSE_SEGFAULT()  do { *((volatile duk_uint32_t *) NULL) = (duk_uint32_t) 0xdeadbeefUL; } while (0)
2487 #endif
2488 #if !defined(DUK_UNREF)
2489 /* Macro for suppressing warnings for potentially unreferenced variables.
2490  * The variables can be actually unreferenced or unreferenced in some
2491  * specific cases only; for instance, if a variable is only debug printed,
2492  * it is unreferenced when debug printing is disabled.
2493  */
2494 #define DUK_UNREF(x)  do { (void) (x); } while (0)
2495 #endif
2496 #if !defined(DUK_NORETURN)
2497 #define DUK_NORETURN(decl)  decl
2498 #endif
2499 #if !defined(DUK_UNREACHABLE)
2500 /* Don't know how to declare unreachable point, so don't do it; this
2501  * may cause some spurious compilation warnings (e.g. "variable used
2502  * uninitialized").
2503  */
2504 #define DUK_UNREACHABLE()  do { } while (0)
2505 #endif
2506 #if !defined(DUK_LOSE_CONST)
2507 /* Convert any input pointer into a "void *", losing a const qualifier.
2508  * This is not fully portable because casting through duk_uintptr_t may
2509  * not work on all architectures (e.g. those with long, segmented pointers).
2510  */
2511 #define DUK_LOSE_CONST(src) ((void *) (duk_uintptr_t) (src))
2512 #endif
2513
2514 #if !defined(DUK_LIKELY)
2515 #define DUK_LIKELY(x)    (x)
2516 #endif
2517 #if !defined(DUK_UNLIKELY)
2518 #define DUK_UNLIKELY(x)  (x)
2519 #endif
2520
2521 #if !defined(DUK_NOINLINE)
2522 #define DUK_NOINLINE       /*nop*/
2523 #endif
2524 #if !defined(DUK_INLINE)
2525 #define DUK_INLINE         /*nop*/
2526 #endif
2527 #if !defined(DUK_ALWAYS_INLINE)
2528 #define DUK_ALWAYS_INLINE  /*nop*/
2529 #endif
2530
2531 #if !defined(DUK_EXTERNAL_DECL)
2532 #define DUK_EXTERNAL_DECL  extern
2533 #endif
2534 #if !defined(DUK_EXTERNAL)
2535 #define DUK_EXTERNAL       /*empty*/
2536 #endif
2537 #if !defined(DUK_INTERNAL_DECL)
2538 #if defined(DUK_SINGLE_FILE)
2539 #define DUK_INTERNAL_DECL  static
2540 #else
2541 #define DUK_INTERNAL_DECL  extern
2542 #endif
2543 #endif
2544 #if !defined(DUK_INTERNAL)
2545 #if defined(DUK_SINGLE_FILE)
2546 #define DUK_INTERNAL       static
2547 #else
2548 #define DUK_INTERNAL       /*empty*/
2549 #endif
2550 #endif
2551 #if !defined(DUK_LOCAL_DECL)
2552 #define DUK_LOCAL_DECL     static
2553 #endif
2554 #if !defined(DUK_LOCAL)
2555 #define DUK_LOCAL          static
2556 #endif
2557
2558 #if !defined(DUK_FILE_MACRO)
2559 #define DUK_FILE_MACRO  __FILE__
2560 #endif
2561 #if !defined(DUK_LINE_MACRO)
2562 #define DUK_LINE_MACRO  __LINE__
2563 #endif
2564 #if !defined(DUK_FUNC_MACRO)
2565 #if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2566 #define DUK_FUNC_MACRO  __func__
2567 #elif defined(__FUNCTION__)
2568 #define DUK_FUNC_MACRO  __FUNCTION__
2569 #else
2570 #define DUK_FUNC_MACRO  "unknown"
2571 #endif
2572 #endif
2573
2574 #if !defined(DUK_BSWAP32)
2575 #define DUK_BSWAP32(x) \
2576         ((((duk_uint32_t) (x)) >> 24) | \
2577          ((((duk_uint32_t) (x)) >> 8) & 0xff00UL) | \
2578          ((((duk_uint32_t) (x)) << 8) & 0xff0000UL) | \
2579          (((duk_uint32_t) (x)) << 24))
2580 #endif
2581 #if !defined(DUK_BSWAP16)
2582 #define DUK_BSWAP16(x) \
2583         ((duk_uint16_t) (x) >> 8) | \
2584         ((duk_uint16_t) (x) << 8)
2585 #endif
2586
2587 /* DUK_USE_VARIADIC_MACROS: required from compilers, so no fill-in. */
2588 /* DUK_USE_UNION_INITIALIZERS: required from compilers, so no fill-in. */
2589
2590 #if !(defined(DUK_USE_FLEX_C99) || defined(DUK_USE_FLEX_ZEROSIZE) || defined(DUK_USE_FLEX_ONESIZE))
2591 #if defined(DUK_F_C99)
2592 #define DUK_USE_FLEX_C99
2593 #else
2594 #define DUK_USE_FLEX_ZEROSIZE  /* Not standard but common enough */
2595 #endif
2596 #endif
2597
2598 #if !(defined(DUK_USE_PACK_GCC_ATTR) || defined(DUK_USE_PACK_CLANG_ATTR) || \
2599       defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2600 #define DUK_USE_PACK_DUMMY_MEMBER
2601 #endif
2602
2603 #if 0  /* not defined by default */
2604 #undef DUK_USE_GCC_PRAGMAS
2605 #endif
2606
2607 /* Workaround for GH-323: avoid inlining control when compiling from
2608  * multiple sources, as it causes compiler portability trouble.
2609  */
2610 #if !defined(DUK_SINGLE_FILE)
2611 #undef DUK_NOINLINE
2612 #undef DUK_INLINE
2613 #undef DUK_ALWAYS_INLINE
2614 #define DUK_NOINLINE       /*nop*/
2615 #define DUK_INLINE         /*nop*/
2616 #define DUK_ALWAYS_INLINE  /*nop*/
2617 #endif
2618
2619 /*
2620  *  Check whether or not a packed duk_tval representation is possible.
2621  *  What's basically required is that pointers are 32-bit values
2622  *  (sizeof(void *) == 4).  Best effort check, not always accurate.
2623  *  If guess goes wrong, crashes may result; self tests also verify
2624  *  the guess.
2625  */
2626
2627 /* Explicit marker needed; may be 'defined', 'undefined, 'or 'not provided'. */
2628 #if !defined(DUK_F_PACKED_TVAL_PROVIDED)
2629 #undef DUK_F_PACKED_TVAL_POSSIBLE
2630
2631 /* Strict C99 case: DUK_UINTPTR_MAX (= UINTPTR_MAX) should be very reliable */
2632 #if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX)
2633 #if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2634 #define DUK_F_PACKED_TVAL_POSSIBLE
2635 #endif
2636 #endif
2637
2638 /* Non-C99 case, still relying on DUK_UINTPTR_MAX, as long as it is not a computed value */
2639 #if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED)
2640 #if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2641 #define DUK_F_PACKED_TVAL_POSSIBLE
2642 #endif
2643 #endif
2644
2645 /* DUK_SIZE_MAX (= SIZE_MAX) is often reliable */
2646 #if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_SIZE_MAX) && !defined(DUK_SIZE_MAX_COMPUTED)
2647 #if (DUK_SIZE_MAX <= 0xffffffffUL)
2648 #define DUK_F_PACKED_TVAL_POSSIBLE
2649 #endif
2650 #endif
2651
2652 #undef DUK_USE_PACKED_TVAL
2653 #if defined(DUK_F_PACKED_TVAL_POSSIBLE)
2654 #define DUK_USE_PACKED_TVAL
2655 #endif
2656
2657 #undef DUK_F_PACKED_TVAL_POSSIBLE
2658 #endif  /* DUK_F_PACKED_TVAL_PROVIDED */
2659
2660 /* Feature option forcing. */
2661 #if defined(DUK_OPT_NO_PACKED_TVAL)
2662 #undef DUK_USE_PACKED_TVAL
2663 #elif defined(DUK_OPT_PACKED_TVAL)
2664 #undef DUK_USE_PACKED_TVAL
2665 #define DUK_USE_PACKED_TVAL
2666 #endif
2667 /* Object property allocation layout has implications for memory and code
2668  * footprint and generated code size/speed.  The best layout also depends
2669  * on whether the platform has alignment requirements or benefits from
2670  * having mostly aligned accesses.
2671  */
2672 #undef DUK_USE_HOBJECT_LAYOUT_1
2673 #undef DUK_USE_HOBJECT_LAYOUT_2
2674 #undef DUK_USE_HOBJECT_LAYOUT_3
2675 #if (DUK_USE_ALIGN_BY == 1)
2676 /* On platforms without any alignment issues, layout 1 is preferable
2677  * because it compiles to slightly less code and provides direct access
2678  * to property keys.
2679  */
2680 #define DUK_USE_HOBJECT_LAYOUT_1
2681 #else
2682 /* On other platforms use layout 2, which requires some padding but
2683  * is a bit more natural than layout 3 in ordering the entries.  Layout
2684  * 3 is currently not used.
2685  */
2686 #define DUK_USE_HOBJECT_LAYOUT_2
2687 #endif
2688
2689 /* GCC/clang inaccurate math would break compliance and probably duk_tval,
2690  * so refuse to compile.  Relax this if -ffast-math is tested to work.
2691  */
2692 #if defined(__FAST_MATH__)
2693 #error __FAST_MATH__ defined, refusing to compile
2694 #endif
2695
2696 /*
2697  *  Feature option handling
2698  */
2699
2700 #if !defined(DUK_USE_ALIGN_BY)
2701 #if defined(DUK_OPT_FORCE_ALIGN)
2702 #define DUK_USE_ALIGN_BY DUK_OPT_FORCE_ALIGN
2703 #else
2704 #define DUK_USE_ALIGN_BY 8
2705 #endif
2706 #endif
2707
2708 #if defined(DUK_OPT_ASSERTIONS)
2709 #define DUK_USE_ASSERTIONS
2710 #elif defined(DUK_OPT_NO_ASSERTIONS)
2711 #undef DUK_USE_ASSERTIONS
2712 #else
2713 #undef DUK_USE_ASSERTIONS
2714 #endif
2715
2716 #if defined(DUK_OPT_AUGMENT_ERRORS)
2717 #define DUK_USE_AUGMENT_ERROR_CREATE
2718 #elif defined(DUK_OPT_NO_AUGMENT_ERRORS)
2719 #undef DUK_USE_AUGMENT_ERROR_CREATE
2720 #else
2721 #define DUK_USE_AUGMENT_ERROR_CREATE
2722 #endif
2723
2724 #if defined(DUK_OPT_AUGMENT_ERRORS)
2725 #define DUK_USE_AUGMENT_ERROR_THROW
2726 #elif defined(DUK_OPT_NO_AUGMENT_ERRORS)
2727 #undef DUK_USE_AUGMENT_ERROR_THROW
2728 #else
2729 #define DUK_USE_AUGMENT_ERROR_THROW
2730 #endif
2731
2732 #if defined(DUK_OPT_BROWSER_LIKE)
2733 #define DUK_USE_BROWSER_LIKE
2734 #elif defined(DUK_OPT_NO_BROWSER_LIKE)
2735 #undef DUK_USE_BROWSER_LIKE
2736 #else
2737 #define DUK_USE_BROWSER_LIKE
2738 #endif
2739
2740 #if defined(DUK_OPT_BUFFEROBJECT_SUPPORT)
2741 #define DUK_USE_BUFFEROBJECT_SUPPORT
2742 #elif defined(DUK_OPT_NO_BUFFEROBJECT_SUPPORT)
2743 #undef DUK_USE_BUFFEROBJECT_SUPPORT
2744 #else
2745 #define DUK_USE_BUFFEROBJECT_SUPPORT
2746 #endif
2747
2748 #if defined(DUK_OPT_BUFLEN16)
2749 #define DUK_USE_BUFLEN16
2750 #elif defined(DUK_OPT_NO_BUFLEN16)
2751 #undef DUK_USE_BUFLEN16
2752 #else
2753 #undef DUK_USE_BUFLEN16
2754 #endif
2755
2756 #if defined(DUK_OPT_BYTECODE_DUMP_SUPPORT)
2757 #define DUK_USE_BYTECODE_DUMP_SUPPORT
2758 #elif defined(DUK_OPT_NO_BYTECODE_DUMP_SUPPORT)
2759 #undef DUK_USE_BYTECODE_DUMP_SUPPORT
2760 #else
2761 #define DUK_USE_BYTECODE_DUMP_SUPPORT
2762 #endif
2763
2764 #if defined(DUK_OPT_COMMONJS_MODULES)
2765 #define DUK_USE_COMMONJS_MODULES
2766 #elif defined(DUK_OPT_NO_COMMONJS_MODULES)
2767 #undef DUK_USE_COMMONJS_MODULES
2768 #else
2769 #define DUK_USE_COMMONJS_MODULES
2770 #endif
2771
2772 #if defined(DUK_OPT_CPP_EXCEPTIONS)
2773 #define DUK_USE_CPP_EXCEPTIONS
2774 #elif defined(DUK_OPT_NO_CPP_EXCEPTIONS)
2775 #undef DUK_USE_CPP_EXCEPTIONS
2776 #else
2777 #undef DUK_USE_CPP_EXCEPTIONS
2778 #endif
2779
2780 #if defined(DUK_OPT_DATAPTR16)
2781 #define DUK_USE_DATAPTR16
2782 #elif defined(DUK_OPT_NO_DATAPTR16)
2783 #undef DUK_USE_DATAPTR16
2784 #else
2785 #undef DUK_USE_DATAPTR16
2786 #endif
2787
2788 #if defined(DUK_OPT_DATAPTR_DEC16)
2789 #define DUK_USE_DATAPTR_DEC16(udata,ptr) DUK_OPT_DATAPTR_DEC16((udata),(ptr))
2790 #else
2791 #undef DUK_USE_DATAPTR_DEC16
2792 #endif
2793
2794 #if defined(DUK_OPT_DATAPTR_ENC16)
2795 #define DUK_USE_DATAPTR_ENC16(udata,ptr) DUK_OPT_DATAPTR_ENC16((udata),(ptr))
2796 #else
2797 #undef DUK_USE_DATAPTR_ENC16
2798 #endif
2799
2800 #if defined(DUK_OPT_DDDPRINT)
2801 #define DUK_USE_DDDPRINT
2802 #elif defined(DUK_OPT_NO_DDDPRINT)
2803 #undef DUK_USE_DDDPRINT
2804 #else
2805 #undef DUK_USE_DDDPRINT
2806 #endif
2807
2808 #if defined(DUK_OPT_DDPRINT)
2809 #define DUK_USE_DDPRINT
2810 #elif defined(DUK_OPT_NO_DDPRINT)
2811 #undef DUK_USE_DDPRINT
2812 #else
2813 #undef DUK_USE_DDPRINT
2814 #endif
2815
2816 #if defined(DUK_OPT_DEBUG)
2817 #define DUK_USE_DEBUG
2818 #elif defined(DUK_OPT_NO_DEBUG)
2819 #undef DUK_USE_DEBUG
2820 #else
2821 #undef DUK_USE_DEBUG
2822 #endif
2823
2824 #if defined(DUK_OPT_DEBUGGER_DUMPHEAP)
2825 #define DUK_USE_DEBUGGER_DUMPHEAP
2826 #elif defined(DUK_OPT_NO_DEBUGGER_DUMPHEAP)
2827 #undef DUK_USE_DEBUGGER_DUMPHEAP
2828 #else
2829 #undef DUK_USE_DEBUGGER_DUMPHEAP
2830 #endif
2831
2832 #if defined(DUK_OPT_DEBUGGER_FWD_LOGGING)
2833 #define DUK_USE_DEBUGGER_FWD_LOGGING
2834 #elif defined(DUK_OPT_NO_DEBUGGER_FWD_LOGGING)
2835 #undef DUK_USE_DEBUGGER_FWD_LOGGING
2836 #else
2837 #undef DUK_USE_DEBUGGER_FWD_LOGGING
2838 #endif
2839
2840 #if defined(DUK_OPT_DEBUGGER_FWD_PRINTALERT)
2841 #define DUK_USE_DEBUGGER_FWD_PRINTALERT
2842 #elif defined(DUK_OPT_NO_DEBUGGER_FWD_PRINTALERT)
2843 #undef DUK_USE_DEBUGGER_FWD_PRINTALERT
2844 #else
2845 #undef DUK_USE_DEBUGGER_FWD_PRINTALERT
2846 #endif
2847
2848 #if defined(DUK_OPT_DEBUGGER_INSPECT)
2849 #define DUK_USE_DEBUGGER_INSPECT
2850 #elif defined(DUK_OPT_NO_DEBUGGER_INSPECT)
2851 #undef DUK_USE_DEBUGGER_INSPECT
2852 #else
2853 #undef DUK_USE_DEBUGGER_INSPECT
2854 #endif
2855
2856 #if defined(DUK_OPT_DEBUGGER_PAUSE_UNCAUGHT)
2857 #define DUK_USE_DEBUGGER_PAUSE_UNCAUGHT
2858 #elif defined(DUK_OPT_NO_DEBUGGER_PAUSE_UNCAUGHT)
2859 #undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT
2860 #else
2861 #undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT
2862 #endif
2863
2864 #if defined(DUK_OPT_DEBUGGER_SUPPORT)
2865 #define DUK_USE_DEBUGGER_SUPPORT
2866 #elif defined(DUK_OPT_NO_DEBUGGER_SUPPORT)
2867 #undef DUK_USE_DEBUGGER_SUPPORT
2868 #else
2869 #undef DUK_USE_DEBUGGER_SUPPORT
2870 #endif
2871
2872 #if defined(DUK_OPT_DEBUGGER_THROW_NOTIFY)
2873 #define DUK_USE_DEBUGGER_THROW_NOTIFY
2874 #elif defined(DUK_OPT_NO_DEBUGGER_THROW_NOTIFY)
2875 #undef DUK_USE_DEBUGGER_THROW_NOTIFY
2876 #else
2877 #define DUK_USE_DEBUGGER_THROW_NOTIFY
2878 #endif
2879
2880 #if defined(DUK_OPT_DEBUGGER_TRANSPORT_TORTURE)
2881 #define DUK_USE_DEBUGGER_TRANSPORT_TORTURE
2882 #elif defined(DUK_OPT_NO_DEBUGGER_TRANSPORT_TORTURE)
2883 #undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE
2884 #else
2885 #undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE
2886 #endif
2887
2888 #if defined(DUK_OPT_DEBUG_BUFSIZE)
2889 #define DUK_USE_DEBUG_BUFSIZE DUK_OPT_DEBUG_BUFSIZE
2890 #else
2891 #define DUK_USE_DEBUG_BUFSIZE 65536L
2892 #endif
2893
2894 #if defined(DUK_OPT_REFERENCE_COUNTING)
2895 #define DUK_USE_DOUBLE_LINKED_HEAP
2896 #elif defined(DUK_OPT_NO_REFERENCE_COUNTING)
2897 #undef DUK_USE_DOUBLE_LINKED_HEAP
2898 #else
2899 #define DUK_USE_DOUBLE_LINKED_HEAP
2900 #endif
2901
2902 #if defined(DUK_OPT_DPRINT)
2903 #define DUK_USE_DPRINT
2904 #elif defined(DUK_OPT_NO_DPRINT)
2905 #undef DUK_USE_DPRINT
2906 #else
2907 #undef DUK_USE_DPRINT
2908 #endif
2909
2910 #if defined(DUK_OPT_DPRINT_COLORS)
2911 #define DUK_USE_DPRINT_COLORS
2912 #elif defined(DUK_OPT_NO_DPRINT_COLORS)
2913 #undef DUK_USE_DPRINT_COLORS
2914 #else
2915 #undef DUK_USE_DPRINT_COLORS
2916 #endif
2917
2918 #if defined(DUK_OPT_DPRINT_RDTSC)
2919 #define DUK_USE_DPRINT_RDTSC
2920 #elif defined(DUK_OPT_NO_DPRINT_RDTSC)
2921 #undef DUK_USE_DPRINT_RDTSC
2922 #else
2923 #undef DUK_USE_DPRINT_RDTSC
2924 #endif
2925
2926 #if defined(DUK_OPT_AUGMENT_ERRORS)
2927 #define DUK_USE_ERRCREATE
2928 #elif defined(DUK_OPT_NO_AUGMENT_ERRORS)
2929 #undef DUK_USE_ERRCREATE
2930 #else
2931 #define DUK_USE_ERRCREATE
2932 #endif
2933
2934 #if defined(DUK_OPT_AUGMENT_ERRORS)
2935 #define DUK_USE_ERRTHROW
2936 #elif defined(DUK_OPT_NO_AUGMENT_ERRORS)
2937 #undef DUK_USE_ERRTHROW
2938 #else
2939 #define DUK_USE_ERRTHROW
2940 #endif
2941
2942 #if defined(DUK_OPT_ES6_OBJECT_PROTO_PROPERTY)
2943 #define DUK_USE_ES6_OBJECT_PROTO_PROPERTY
2944 #elif defined(DUK_OPT_NO_ES6_OBJECT_PROTO_PROPERTY)
2945 #undef DUK_USE_ES6_OBJECT_PROTO_PROPERTY
2946 #else
2947 #define DUK_USE_ES6_OBJECT_PROTO_PROPERTY
2948 #endif
2949
2950 #if defined(DUK_OPT_ES6_OBJECT_SETPROTOTYPEOF)
2951 #define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF
2952 #elif defined(DUK_OPT_NO_ES6_OBJECT_SETPROTOTYPEOF)
2953 #undef DUK_USE_ES6_OBJECT_SETPROTOTYPEOF
2954 #else
2955 #define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF
2956 #endif
2957
2958 #if defined(DUK_OPT_ES6_PROXY)
2959 #define DUK_USE_ES6_PROXY
2960 #elif defined(DUK_OPT_NO_ES6_PROXY)
2961 #undef DUK_USE_ES6_PROXY
2962 #else
2963 #define DUK_USE_ES6_PROXY
2964 #endif
2965
2966 #if defined(DUK_OPT_ES6_REGEXP_BRACES)
2967 #define DUK_USE_ES6_REGEXP_BRACES
2968 #elif defined(DUK_OPT_NO_ES6_REGEXP_BRACES)
2969 #undef DUK_USE_ES6_REGEXP_BRACES
2970 #else
2971 #define DUK_USE_ES6_REGEXP_BRACES
2972 #endif
2973
2974 #undef DUK_USE_EXEC_INDIRECT_BOUND_CHECK
2975 #if defined(DUK_OPT_DEBUG) || defined(DUK_OPT_ASSERTIONS)
2976 /* Enabled with debug/assertions just so that any issues can be caught. */
2977 #define DUK_USE_EXEC_INDIRECT_BOUND_CHECK
2978 #endif
2979
2980 #undef DUK_USE_EXEC_TIMEOUT_CHECK
2981 #if defined(DUK_OPT_EXEC_TIMEOUT_CHECK)
2982 #define DUK_USE_EXEC_TIMEOUT_CHECK(udata)  DUK_OPT_EXEC_TIMEOUT_CHECK((udata))
2983 #endif
2984
2985 #undef DUK_USE_EXTSTR_FREE
2986 #if defined(DUK_OPT_EXTERNAL_STRINGS) && defined(DUK_OPT_EXTSTR_FREE)
2987 #define DUK_USE_EXTSTR_FREE(udata,ptr) DUK_OPT_EXTSTR_FREE((udata), (ptr))
2988 #endif
2989
2990 #undef DUK_USE_EXTSTR_INTERN_CHECK
2991 #if defined(DUK_OPT_EXTERNAL_STRINGS) && defined(DUK_OPT_EXTSTR_INTERN_CHECK)
2992 #define DUK_USE_EXTSTR_INTERN_CHECK(udata,ptr,len) DUK_OPT_EXTSTR_INTERN_CHECK((udata), (ptr), (len))
2993 #endif
2994
2995 /* Support for 48-bit signed integer duk_tval with transparent semantics. */
2996 #undef DUK_USE_FASTINT
2997 #if defined(DUK_OPT_FASTINT)
2998 #if !defined(DUK_F_HAVE_64BIT)
2999 #error DUK_OPT_FASTINT requires 64-bit integer type support at the moment
3000 #endif
3001 #define DUK_USE_FASTINT
3002 #endif
3003
3004 #if defined(DUK_OPT_FILE_IO)
3005 #define DUK_USE_FILE_IO
3006 #elif defined(DUK_OPT_NO_FILE_IO)
3007 #undef DUK_USE_FILE_IO
3008 #else
3009 #define DUK_USE_FILE_IO
3010 #endif
3011
3012 #if defined(DUK_OPT_FUNCPTR16)
3013 #define DUK_USE_FUNCPTR16
3014 #elif defined(DUK_OPT_NO_FUNCPTR16)
3015 #undef DUK_USE_FUNCPTR16
3016 #else
3017 #undef DUK_USE_FUNCPTR16
3018 #endif
3019
3020 #if defined(DUK_OPT_FUNCPTR_DEC16)
3021 #define DUK_USE_FUNCPTR_DEC16(udata,ptr) DUK_OPT_FUNCPTR_DEC16((udata),(ptr))
3022 #else
3023 #undef DUK_USE_FUNCPTR_DEC16
3024 #endif
3025
3026 #if defined(DUK_OPT_FUNCPTR_ENC16)
3027 #define DUK_USE_FUNCPTR_ENC16(udata,ptr) DUK_OPT_FUNCPTR_ENC16((udata),(ptr))
3028 #else
3029 #undef DUK_USE_FUNCPTR_ENC16
3030 #endif
3031
3032 #if defined(DUK_OPT_GC_TORTURE)
3033 #define DUK_USE_GC_TORTURE
3034 #elif defined(DUK_OPT_NO_GC_TORTURE)
3035 #undef DUK_USE_GC_TORTURE
3036 #else
3037 #undef DUK_USE_GC_TORTURE
3038 #endif
3039
3040 #if defined(DUK_OPT_HEAPPTR16)
3041 #define DUK_USE_HEAPPTR16
3042 #elif defined(DUK_OPT_NO_HEAPPTR16)
3043 #undef DUK_USE_HEAPPTR16
3044 #else
3045 #undef DUK_USE_HEAPPTR16
3046 #endif
3047
3048 #if defined(DUK_OPT_HEAPPTR_DEC16)
3049 #define DUK_USE_HEAPPTR_DEC16(udata,ptr) DUK_OPT_HEAPPTR_DEC16((udata),(ptr))
3050 #else
3051 #undef DUK_USE_HEAPPTR_DEC16
3052 #endif
3053
3054 #if defined(DUK_OPT_HEAPPTR_ENC16)
3055 #define DUK_USE_HEAPPTR_ENC16(udata,ptr) DUK_OPT_HEAPPTR_ENC16((udata),(ptr))
3056 #else
3057 #undef DUK_USE_HEAPPTR_ENC16
3058 #endif
3059
3060 /* For now, hash part is dropped if and only if 16-bit object fields are used. */
3061 #define DUK_USE_HOBJECT_HASH_PART
3062 #if defined(DUK_OPT_OBJSIZES16)
3063 #undef DUK_USE_HOBJECT_HASH_PART
3064 #endif
3065
3066 #if defined(DUK_OPT_HSTRING_CLEN)
3067 #define DUK_USE_HSTRING_CLEN
3068 #elif defined(DUK_OPT_NO_HSTRING_CLEN)
3069 #undef DUK_USE_HSTRING_CLEN
3070 #else
3071 #define DUK_USE_HSTRING_CLEN
3072 #endif
3073
3074 #if defined(DUK_OPT_EXTERNAL_STRINGS)
3075 #define DUK_USE_HSTRING_EXTDATA
3076 #elif defined(DUK_OPT_NO_EXTERNAL_STRINGS)
3077 #undef DUK_USE_HSTRING_EXTDATA
3078 #else
3079 #undef DUK_USE_HSTRING_EXTDATA
3080 #endif
3081
3082 #if defined(DUK_OPT_INTERRUPT_COUNTER)
3083 #define DUK_USE_INTERRUPT_COUNTER
3084 #elif defined(DUK_OPT_NO_INTERRUPT_COUNTER)
3085 #undef DUK_USE_INTERRUPT_COUNTER
3086 #else
3087 #undef DUK_USE_INTERRUPT_COUNTER
3088 #endif
3089
3090 #if defined(DUK_OPT_JC)
3091 #define DUK_USE_JC
3092 #elif defined(DUK_OPT_NO_JC)
3093 #undef DUK_USE_JC
3094 #else
3095 #define DUK_USE_JC
3096 #endif
3097
3098 #if defined(DUK_OPT_JSON_STRINGIFY_FASTPATH)
3099 #define DUK_USE_JSON_STRINGIFY_FASTPATH
3100 #elif defined(DUK_OPT_NO_JSON_STRINGIFY_FASTPATH)
3101 #undef DUK_USE_JSON_STRINGIFY_FASTPATH
3102 #else
3103 #undef DUK_USE_JSON_STRINGIFY_FASTPATH
3104 #endif
3105
3106 #if defined(DUK_OPT_JX)
3107 #define DUK_USE_JX
3108 #elif defined(DUK_OPT_NO_JX)
3109 #undef DUK_USE_JX
3110 #else
3111 #define DUK_USE_JX
3112 #endif
3113
3114 #if defined(DUK_OPT_LIGHTFUNC_BUILTINS)
3115 #define DUK_USE_LIGHTFUNC_BUILTINS
3116 #elif defined(DUK_OPT_NO_LIGHTFUNC_BUILTINS)
3117 #undef DUK_USE_LIGHTFUNC_BUILTINS
3118 #else
3119 #undef DUK_USE_LIGHTFUNC_BUILTINS
3120 #endif
3121
3122 #if defined(DUK_OPT_MARK_AND_SWEEP)
3123 #define DUK_USE_MARK_AND_SWEEP
3124 #elif defined(DUK_OPT_NO_MARK_AND_SWEEP)
3125 #undef DUK_USE_MARK_AND_SWEEP
3126 #else
3127 #define DUK_USE_MARK_AND_SWEEP
3128 #endif
3129
3130 #if defined(DUK_OPT_MS_STRINGTABLE_RESIZE)
3131 #define DUK_USE_MS_STRINGTABLE_RESIZE
3132 #elif defined(DUK_OPT_NO_MS_STRINGTABLE_RESIZE)
3133 #undef DUK_USE_MS_STRINGTABLE_RESIZE
3134 #else
3135 #define DUK_USE_MS_STRINGTABLE_RESIZE
3136 #endif
3137
3138 #if defined(DUK_OPT_NONSTD_ARRAY_CONCAT_TRAILER)
3139 #define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER
3140 #elif defined(DUK_OPT_NO_NONSTD_ARRAY_CONCAT_TRAILER)
3141 #undef DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER
3142 #else
3143 #define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER
3144 #endif
3145
3146 #if defined(DUK_OPT_NONSTD_ARRAY_MAP_TRAILER)
3147 #define DUK_USE_NONSTD_ARRAY_MAP_TRAILER
3148 #elif defined(DUK_OPT_NO_NONSTD_ARRAY_MAP_TRAILER)
3149 #undef DUK_USE_NONSTD_ARRAY_MAP_TRAILER
3150 #else
3151 #define DUK_USE_NONSTD_ARRAY_MAP_TRAILER
3152 #endif
3153
3154 #if defined(DUK_OPT_NONSTD_ARRAY_SPLICE_DELCOUNT)
3155 #define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT
3156 #elif defined(DUK_OPT_NO_NONSTD_ARRAY_SPLICE_DELCOUNT)
3157 #undef DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT
3158 #else
3159 #define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT
3160 #endif
3161
3162 #if defined(DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY)
3163 #define DUK_USE_NONSTD_FUNC_CALLER_PROPERTY
3164 #elif defined(DUK_OPT_NO_NONSTD_FUNC_CALLER_PROPERTY)
3165 #undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY
3166 #else
3167 #undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY
3168 #endif
3169
3170 #if defined(DUK_OPT_NONSTD_FUNC_SOURCE_PROPERTY)
3171 #define DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY
3172 #elif defined(DUK_OPT_NO_NONSTD_FUNC_SOURCE_PROPERTY)
3173 #undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY
3174 #else
3175 #undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY
3176 #endif
3177
3178 #if defined(DUK_OPT_NONSTD_FUNC_STMT)
3179 #define DUK_USE_NONSTD_FUNC_STMT
3180 #elif defined(DUK_OPT_NO_NONSTD_FUNC_STMT)
3181 #undef DUK_USE_NONSTD_FUNC_STMT
3182 #else
3183 #define DUK_USE_NONSTD_FUNC_STMT
3184 #endif
3185
3186 #if defined(DUK_OPT_NONSTD_ACCESSOR_KEY_ARGUMENT)
3187 #define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT
3188 #elif defined(DUK_OPT_NO_NONSTD_ACCESSOR_KEY_ARGUMENT)
3189 #undef DUK_USE_NONSTD_GETTER_KEY_ARGUMENT
3190 #else
3191 #define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT
3192 #endif
3193
3194 #if defined(DUK_OPT_NONSTD_JSON_ESC_U2028_U2029)
3195 #define DUK_USE_NONSTD_JSON_ESC_U2028_U2029
3196 #elif defined(DUK_OPT_NO_NONSTD_JSON_ESC_U2028_U2029)
3197 #undef DUK_USE_NONSTD_JSON_ESC_U2028_U2029
3198 #else
3199 #define DUK_USE_NONSTD_JSON_ESC_U2028_U2029
3200 #endif
3201
3202 #if defined(DUK_OPT_NONSTD_REGEXP_DOLLAR_ESCAPE)
3203 #define DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE
3204 #elif defined(DUK_OPT_NO_NONSTD_REGEXP_DOLLAR_ESCAPE)
3205 #undef DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE
3206 #else
3207 #define DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE
3208 #endif
3209
3210 #if defined(DUK_OPT_NONSTD_ACCESSOR_KEY_ARGUMENT)
3211 #define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT
3212 #elif defined(DUK_OPT_NO_NONSTD_ACCESSOR_KEY_ARGUMENT)
3213 #undef DUK_USE_NONSTD_SETTER_KEY_ARGUMENT
3214 #else
3215 #define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT
3216 #endif
3217
3218 #if defined(DUK_OPT_NONSTD_STRING_FROMCHARCODE_32BIT)
3219 #define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT
3220 #elif defined(DUK_OPT_NO_NONSTD_STRING_FROMCHARCODE_32BIT)
3221 #undef DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT
3222 #else
3223 #define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT
3224 #endif
3225
3226 #if defined(DUK_OPT_OBJSIZES16)
3227 #define DUK_USE_OBJSIZES16
3228 #elif defined(DUK_OPT_NO_OBJSIZES16)
3229 #undef DUK_USE_OBJSIZES16
3230 #else
3231 #undef DUK_USE_OBJSIZES16
3232 #endif
3233
3234 #if defined(DUK_OPT_OCTAL_SUPPORT)
3235 #define DUK_USE_OCTAL_SUPPORT
3236 #elif defined(DUK_OPT_NO_OCTAL_SUPPORT)
3237 #undef DUK_USE_OCTAL_SUPPORT
3238 #else
3239 #define DUK_USE_OCTAL_SUPPORT
3240 #endif
3241
3242 #if defined(DUK_OPT_PACKED_TVAL)
3243 #define DUK_USE_PACKED_TVAL
3244 #elif defined(DUK_OPT_NO_PACKED_TVAL)
3245 #undef DUK_USE_PACKED_TVAL
3246 #else
3247 /* Already provided above */
3248 #endif
3249
3250 #undef DUK_USE_PANIC_ABORT
3251 #if !defined(DUK_OPT_SEGFAULT_ON_PANIC)
3252 #define DUK_USE_PANIC_ABORT
3253 #endif
3254
3255 #undef DUK_USE_PANIC_HANDLER
3256 #if defined(DUK_OPT_PANIC_HANDLER)
3257 #define DUK_USE_PANIC_HANDLER(code,msg) DUK_OPT_PANIC_HANDLER((code),(msg))
3258 #endif
3259
3260 #undef DUK_USE_PANIC_SEGFAULT
3261 #if defined(DUK_OPT_SEGFAULT_ON_PANIC)
3262 #define DUK_USE_PANIC_SEGFAULT
3263 #endif
3264
3265 #if defined(DUK_OPT_PARANOID_ERRORS)
3266 #define DUK_USE_PARANOID_ERRORS
3267 #elif defined(DUK_OPT_NO_PARANOID_ERRORS)
3268 #undef DUK_USE_PARANOID_ERRORS
3269 #else
3270 #undef DUK_USE_PARANOID_ERRORS
3271 #endif
3272
3273 #if defined(DUK_OPT_PC2LINE)
3274 #define DUK_USE_PC2LINE
3275 #elif defined(DUK_OPT_NO_PC2LINE)
3276 #undef DUK_USE_PC2LINE
3277 #else
3278 #define DUK_USE_PC2LINE
3279 #endif
3280
3281 #if defined(DUK_OPT_REFCOUNT16)
3282 #define DUK_USE_REFCOUNT16
3283 #elif defined(DUK_OPT_NO_REFCOUNT16)
3284 #undef DUK_USE_REFCOUNT16
3285 #else
3286 #undef DUK_USE_REFCOUNT16
3287 #endif
3288
3289 #if defined(DUK_OPT_REFERENCE_COUNTING)
3290 #define DUK_USE_REFERENCE_COUNTING
3291 #elif defined(DUK_OPT_NO_REFERENCE_COUNTING)
3292 #undef DUK_USE_REFERENCE_COUNTING
3293 #else
3294 #define DUK_USE_REFERENCE_COUNTING
3295 #endif
3296
3297 #if defined(DUK_OPT_REGEXP_CANON_WORKAROUND)
3298 #define DUK_USE_REGEXP_CANON_WORKAROUND
3299 #elif defined(DUK_OPT_NO_REGEXP_CANON_WORKAROUND)
3300 #undef DUK_USE_REGEXP_CANON_WORKAROUND
3301 #else
3302 #undef DUK_USE_REGEXP_CANON_WORKAROUND
3303 #endif
3304
3305 #if defined(DUK_OPT_REGEXP_SUPPORT)
3306 #define DUK_USE_REGEXP_SUPPORT
3307 #elif defined(DUK_OPT_NO_REGEXP_SUPPORT)
3308 #undef DUK_USE_REGEXP_SUPPORT
3309 #else
3310 #define DUK_USE_REGEXP_SUPPORT
3311 #endif
3312
3313 #if defined(DUK_OPT_ROM_GLOBAL_CLONE)
3314 #define DUK_USE_ROM_GLOBAL_CLONE
3315 #elif defined(DUK_OPT_NO_ROM_GLOBAL_CLONE)
3316 #undef DUK_USE_ROM_GLOBAL_CLONE
3317 #else
3318 #undef DUK_USE_ROM_GLOBAL_CLONE
3319 #endif
3320
3321 #if defined(DUK_OPT_ROM_GLOBAL_INHERIT)
3322 #define DUK_USE_ROM_GLOBAL_INHERIT
3323 #elif defined(DUK_OPT_NO_ROM_GLOBAL_INHERIT)
3324 #undef DUK_USE_ROM_GLOBAL_INHERIT
3325 #else
3326 #undef DUK_USE_ROM_GLOBAL_INHERIT
3327 #endif
3328
3329 #if defined(DUK_OPT_ROM_OBJECTS)
3330 #define DUK_USE_ROM_OBJECTS
3331 #elif defined(DUK_OPT_NO_ROM_OBJECTS)
3332 #undef DUK_USE_ROM_OBJECTS
3333 #else
3334 #undef DUK_USE_ROM_OBJECTS
3335 #endif
3336
3337 #if defined(DUK_OPT_ROM_STRINGS)
3338 #define DUK_USE_ROM_STRINGS
3339 #elif defined(DUK_OPT_NO_ROM_STRINGS)
3340 #undef DUK_USE_ROM_STRINGS
3341 #else
3342 #undef DUK_USE_ROM_STRINGS
3343 #endif
3344
3345 #if defined(DUK_OPT_SECTION_B)
3346 #define DUK_USE_SECTION_B
3347 #elif defined(DUK_OPT_NO_SECTION_B)
3348 #undef DUK_USE_SECTION_B
3349 #else
3350 #define DUK_USE_SECTION_B
3351 #endif
3352
3353 #if defined(DUK_OPT_SELF_TESTS)
3354 #define DUK_USE_SELF_TESTS
3355 #elif defined(DUK_OPT_NO_SELF_TESTS)
3356 #undef DUK_USE_SELF_TESTS
3357 #else
3358 #undef DUK_USE_SELF_TESTS
3359 #endif
3360
3361 #if defined(DUK_OPT_SHUFFLE_TORTURE)
3362 #define DUK_USE_SHUFFLE_TORTURE
3363 #elif defined(DUK_OPT_NO_SHUFFLE_TORTURE)
3364 #undef DUK_USE_SHUFFLE_TORTURE
3365 #else
3366 #undef DUK_USE_SHUFFLE_TORTURE
3367 #endif
3368
3369 #if defined(DUK_OPT_SOURCE_NONBMP)
3370 #define DUK_USE_SOURCE_NONBMP
3371 #elif defined(DUK_OPT_NO_SOURCE_NONBMP)
3372 #undef DUK_USE_SOURCE_NONBMP
3373 #else
3374 #define DUK_USE_SOURCE_NONBMP
3375 #endif
3376
3377 #if defined(DUK_OPT_STRHASH16)
3378 #define DUK_USE_STRHASH16
3379 #elif defined(DUK_OPT_NO_STRHASH16)
3380 #undef DUK_USE_STRHASH16
3381 #else
3382 #undef DUK_USE_STRHASH16
3383 #endif
3384
3385 #if defined(DUK_OPT_STRICT_DECL)
3386 #define DUK_USE_STRICT_DECL
3387 #elif defined(DUK_OPT_NO_STRICT_DECL)
3388 #undef DUK_USE_STRICT_DECL
3389 #else
3390 #define DUK_USE_STRICT_DECL
3391 #endif
3392
3393 #if defined(DUK_OPT_STRICT_UTF8_SOURCE)
3394 #define DUK_USE_STRICT_UTF8_SOURCE
3395 #elif defined(DUK_OPT_NO_STRICT_UTF8_SOURCE)
3396 #undef DUK_USE_STRICT_UTF8_SOURCE
3397 #else
3398 #undef DUK_USE_STRICT_UTF8_SOURCE
3399 #endif
3400
3401 #if defined(DUK_OPT_STRLEN16)
3402 #define DUK_USE_STRLEN16
3403 #elif defined(DUK_OPT_NO_STRLEN16)
3404 #undef DUK_USE_STRLEN16
3405 #else
3406 #undef DUK_USE_STRLEN16
3407 #endif
3408
3409 #undef DUK_USE_STRTAB_CHAIN
3410 #if defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE)
3411 #define DUK_USE_STRTAB_CHAIN
3412 #endif
3413
3414 #undef DUK_USE_STRTAB_CHAIN_SIZE
3415 #if defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE)
3416 /* Low memory algorithm: separate chaining using arrays, fixed size hash */
3417 #define DUK_USE_STRTAB_CHAIN_SIZE  DUK_OPT_STRTAB_CHAIN_SIZE
3418 #endif
3419
3420 #undef DUK_USE_STRTAB_PROBE
3421 #if !(defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE))
3422 #define DUK_USE_STRTAB_PROBE
3423 #endif
3424
3425 #if defined(DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY)
3426 #undef DUK_USE_TAILCALL
3427 #else
3428 #define DUK_USE_TAILCALL
3429 #endif
3430
3431 #if defined(DUK_OPT_TARGET_INFO)
3432 #define DUK_USE_TARGET_INFO DUK_OPT_TARGET_INFO
3433 #else
3434 #define DUK_USE_TARGET_INFO "unknown"
3435 #endif
3436
3437 #if defined(DUK_OPT_NO_AUGMENT_ERRORS)
3438 #undef DUK_USE_TRACEBACKS
3439 #elif defined(DUK_OPT_NO_TRACEBACKS)
3440 #undef DUK_USE_TRACEBACKS
3441 #else
3442 #define DUK_USE_TRACEBACKS
3443 #endif
3444
3445 #if defined(DUK_OPT_TRACEBACK_DEPTH)
3446 #define DUK_USE_TRACEBACK_DEPTH  DUK_OPT_TRACEBACK_DEPTH
3447 #else
3448 #define DUK_USE_TRACEBACK_DEPTH  10
3449 #endif
3450
3451 #if defined(DUK_OPT_DECLARE)
3452 #define DUK_USE_USER_DECLARE() DUK_OPT_DECLARE
3453 #else
3454 #define DUK_USE_USER_DECLARE() /* no user declarations */
3455 #endif
3456
3457 /* User provided InitJS. */
3458 #undef DUK_USE_USER_INITJS
3459 #if defined(DUK_OPT_USER_INITJS)
3460 #define DUK_USE_USER_INITJS (DUK_OPT_USER_INITJS)
3461 #endif
3462
3463 #if defined(DUK_OPT_VERBOSE_ERRORS)
3464 #define DUK_USE_VERBOSE_ERRORS
3465 #elif defined(DUK_OPT_NO_VERBOSE_ERRORS)
3466 #undef DUK_USE_VERBOSE_ERRORS
3467 #else
3468 #define DUK_USE_VERBOSE_ERRORS
3469 #endif
3470
3471 #if defined(DUK_OPT_VOLUNTARY_GC)
3472 #define DUK_USE_VOLUNTARY_GC
3473 #elif defined(DUK_OPT_NO_VOLUNTARY_GC)
3474 #undef DUK_USE_VOLUNTARY_GC
3475 #else
3476 #define DUK_USE_VOLUNTARY_GC
3477 #endif
3478
3479 #if defined(DUK_OPT_ZERO_BUFFER_DATA)
3480 #define DUK_USE_ZERO_BUFFER_DATA
3481 #elif defined(DUK_OPT_NO_ZERO_BUFFER_DATA)
3482 #undef DUK_USE_ZERO_BUFFER_DATA
3483 #else
3484 #define DUK_USE_ZERO_BUFFER_DATA
3485 #endif
3486
3487 /*
3488  *  Autogenerated defaults
3489  */
3490
3491 #define DUK_USE_AVOID_PLATFORM_FUNCPTRS
3492 #define DUK_USE_BASE64_FASTPATH
3493 #define DUK_USE_BUILTIN_INITJS
3494 #define DUK_USE_COMPILER_RECLIMIT 2500
3495 #undef DUK_USE_DATE_FORMAT_STRING
3496 #undef DUK_USE_DATE_GET_LOCAL_TZOFFSET
3497 #undef DUK_USE_DATE_GET_NOW
3498 #undef DUK_USE_DATE_PARSE_STRING
3499 #undef DUK_USE_DATE_PRS_GETDATE
3500 #define DUK_USE_ESBC_LIMITS
3501 #define DUK_USE_ESBC_MAX_BYTES 2147418112L
3502 #define DUK_USE_ESBC_MAX_LINENUMBER 2147418112L
3503 #undef DUK_USE_EXEC_FUN_LOCAL
3504 #undef DUK_USE_EXPLICIT_NULL_INIT
3505 #define DUK_USE_FAST_REFCOUNT_DEFAULT
3506 #define DUK_USE_HEX_FASTPATH
3507 #define DUK_USE_IDCHAR_FASTPATH
3508 #undef DUK_USE_INTERRUPT_DEBUG_FIXUP
3509 #define DUK_USE_JSON_DECNUMBER_FASTPATH
3510 #define DUK_USE_JSON_DECSTRING_FASTPATH
3511 #define DUK_USE_JSON_DEC_RECLIMIT 1000
3512 #define DUK_USE_JSON_EATWHITE_FASTPATH
3513 #define DUK_USE_JSON_ENC_RECLIMIT 1000
3514 #define DUK_USE_JSON_QUOTESTRING_FASTPATH
3515 #define DUK_USE_LEXER_SLIDING_WINDOW
3516 #undef DUK_USE_MARKANDSWEEP_FINALIZER_TORTURE
3517 #define DUK_USE_MARK_AND_SWEEP_RECLIMIT 256
3518 #define DUK_USE_MATH_BUILTIN
3519 #define DUK_USE_NATIVE_CALL_RECLIMIT 1000
3520 #undef DUK_USE_PANIC_EXIT
3521 #undef DUK_USE_PREFER_SIZE
3522 #define DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS
3523 #undef DUK_USE_REFZERO_FINALIZER_TORTURE
3524 #define DUK_USE_REGEXP_COMPILER_RECLIMIT 10000
3525 #define DUK_USE_REGEXP_EXECUTOR_RECLIMIT 10000
3526 #define DUK_USE_ROM_PTRCOMP_FIRST 63488L
3527 #undef DUK_USE_STRHASH_DENSE
3528 #define DUK_USE_STRHASH_SKIP_SHIFT 5
3529 #undef DUK_USE_VALSTACK_UNSAFE
3530 #define DUK_USE_VERBOSE_EXECUTOR_ERRORS
3531
3532 /*
3533  *  Alternative customization header
3534  *
3535  *  If you want to modify the final DUK_USE_xxx flags directly (without
3536  *  using the available DUK_OPT_xxx flags), define DUK_OPT_HAVE_CUSTOM_H
3537  *  and tweak the final flags there.
3538  */
3539
3540 #if defined(DUK_OPT_HAVE_CUSTOM_H)
3541 #include "duk_custom.h"
3542 #endif
3543
3544 /*
3545  *  You may add overriding #define/#undef directives below for
3546  *  customization.  You of course cannot un-#include or un-typedef
3547  *  anything; these require direct changes above.
3548  */
3549
3550 /* __OVERRIDE_DEFINES__ */
3551
3552 /*
3553  *  Date provider selection
3554  *
3555  *  User may define DUK_USE_DATE_GET_NOW() etc directly, in which case we'll
3556  *  rely on an external provider.  If this is not done, revert to previous
3557  *  behavior and use Unix/Windows built-in provider.
3558  */
3559
3560 #if defined(DUK_COMPILING_DUKTAPE)
3561
3562 #if defined(DUK_USE_DATE_GET_NOW)
3563 /* External provider already defined. */
3564 #elif defined(DUK_USE_DATE_NOW_GETTIMEOFDAY)
3565 #define DUK_USE_DATE_GET_NOW(ctx)            duk_bi_date_get_now_gettimeofday((ctx))
3566 #elif defined(DUK_USE_DATE_NOW_TIME)
3567 #define DUK_USE_DATE_GET_NOW(ctx)            duk_bi_date_get_now_time((ctx))
3568 #elif defined(DUK_USE_DATE_NOW_WINDOWS)
3569 #define DUK_USE_DATE_GET_NOW(ctx)            duk_bi_date_get_now_windows((ctx))
3570 #else
3571 #error no provider for DUK_USE_DATE_GET_NOW()
3572 #endif
3573
3574 #if defined(DUK_USE_DATE_GET_LOCAL_TZOFFSET)
3575 /* External provider already defined. */
3576 #elif defined(DUK_USE_DATE_TZO_GMTIME_R) || defined(DUK_USE_DATE_TZO_GMTIME)
3577 #define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d)   duk_bi_date_get_local_tzoffset_gmtime((d))
3578 #elif defined(DUK_USE_DATE_TZO_WINDOWS)
3579 #define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d)   duk_bi_date_get_local_tzoffset_windows((d))
3580 #else
3581 #error no provider for DUK_USE_DATE_GET_LOCAL_TZOFFSET()
3582 #endif
3583
3584 #if defined(DUK_USE_DATE_PARSE_STRING)
3585 /* External provider already defined. */
3586 #elif defined(DUK_USE_DATE_PRS_STRPTIME)
3587 #define DUK_USE_DATE_PARSE_STRING(ctx,str)   duk_bi_date_parse_string_strptime((ctx), (str))
3588 #elif defined(DUK_USE_DATE_PRS_GETDATE)
3589 #define DUK_USE_DATE_PARSE_STRING(ctx,str)   duk_bi_date_parse_string_getdate((ctx), (str))
3590 #else
3591 /* No provider for DUK_USE_DATE_PARSE_STRING(), fall back to ISO 8601 only. */
3592 #endif
3593
3594 #if defined(DUK_USE_DATE_FORMAT_STRING)
3595 /* External provider already defined. */
3596 #elif defined(DUK_USE_DATE_FMT_STRFTIME)
3597 #define DUK_USE_DATE_FORMAT_STRING(ctx,parts,tzoffset,flags) \
3598         duk_bi_date_format_parts_strftime((ctx), (parts), (tzoffset), (flags))
3599 #else
3600 /* No provider for DUK_USE_DATE_FORMAT_STRING(), fall back to ISO 8601 only. */
3601 #endif
3602
3603 #endif  /* DUK_COMPILING_DUKTAPE */
3604
3605 /*
3606  *  Checks for config option consistency (DUK_USE_xxx)
3607  */
3608
3609 #if defined(DUK_USE_32BIT_PTRS)
3610 #error unsupported config option used (option has been removed): DUK_USE_32BIT_PTRS
3611 #endif
3612 #if defined(DUK_USE_ALIGN_4)
3613 #error unsupported config option used (option has been removed): DUK_USE_ALIGN_4
3614 #endif
3615 #if defined(DUK_USE_ALIGN_8)
3616 #error unsupported config option used (option has been removed): DUK_USE_ALIGN_8
3617 #endif
3618 #if defined(DUK_USE_BYTEORDER_FORCED)
3619 #error unsupported config option used (option has been removed): DUK_USE_BYTEORDER_FORCED
3620 #endif
3621 #if defined(DUK_USE_DATAPTR_DEC16) && !defined(DUK_USE_DATAPTR16)
3622 #error config option DUK_USE_DATAPTR_DEC16 requires option DUK_USE_DATAPTR16 (which is missing)
3623 #endif
3624 #if defined(DUK_USE_DATAPTR_ENC16) && !defined(DUK_USE_DATAPTR16)
3625 #error config option DUK_USE_DATAPTR_ENC16 requires option DUK_USE_DATAPTR16 (which is missing)
3626 #endif
3627 #if defined(DUK_USE_DEBUGGER_SUPPORT) && !defined(DUK_USE_INTERRUPT_COUNTER)
3628 #error config option DUK_USE_DEBUGGER_SUPPORT requires option DUK_USE_INTERRUPT_COUNTER (which is missing)
3629 #endif
3630 #if defined(DUK_USE_DEEP_C_STACK)
3631 #error unsupported config option used (option has been removed): DUK_USE_DEEP_C_STACK
3632 #endif
3633 #if defined(DUK_USE_DOUBLE_BE)
3634 #error unsupported config option used (option has been removed): DUK_USE_DOUBLE_BE
3635 #endif
3636 #if defined(DUK_USE_DOUBLE_BE) && defined(DUK_USE_DOUBLE_LE)
3637 #error config option DUK_USE_DOUBLE_BE conflicts with option DUK_USE_DOUBLE_LE (which is also defined)
3638 #endif
3639 #if defined(DUK_USE_DOUBLE_BE) && defined(DUK_USE_DOUBLE_ME)
3640 #error config option DUK_USE_DOUBLE_BE conflicts with option DUK_USE_DOUBLE_ME (which is also defined)
3641 #endif
3642 #if defined(DUK_USE_DOUBLE_LE)
3643 #error unsupported config option used (option has been removed): DUK_USE_DOUBLE_LE
3644 #endif
3645 #if defined(DUK_USE_DOUBLE_LE) && defined(DUK_USE_DOUBLE_BE)
3646 #error config option DUK_USE_DOUBLE_LE conflicts with option DUK_USE_DOUBLE_BE (which is also defined)
3647 #endif
3648 #if defined(DUK_USE_DOUBLE_LE) && defined(DUK_USE_DOUBLE_ME)
3649 #error config option DUK_USE_DOUBLE_LE conflicts with option DUK_USE_DOUBLE_ME (which is also defined)
3650 #endif
3651 #if defined(DUK_USE_DOUBLE_ME)
3652 #error unsupported config option used (option has been removed): DUK_USE_DOUBLE_ME
3653 #endif
3654 #if defined(DUK_USE_DOUBLE_ME) && defined(DUK_USE_DOUBLE_LE)
3655 #error config option DUK_USE_DOUBLE_ME conflicts with option DUK_USE_DOUBLE_LE (which is also defined)
3656 #endif
3657 #if defined(DUK_USE_DOUBLE_ME) && defined(DUK_USE_DOUBLE_BE)
3658 #error config option DUK_USE_DOUBLE_ME conflicts with option DUK_USE_DOUBLE_BE (which is also defined)
3659 #endif
3660 #if defined(DUK_USE_DPRINT) && !defined(DUK_USE_DEBUG)
3661 #error config option DUK_USE_DPRINT requires option DUK_USE_DEBUG (which is missing)
3662 #endif
3663 #if defined(DUK_USE_ESBC_MAX_BYTES) && !defined(DUK_USE_ESBC_LIMITS)
3664 #error config option DUK_USE_ESBC_MAX_BYTES requires option DUK_USE_ESBC_LIMITS (which is missing)
3665 #endif
3666 #if defined(DUK_USE_ESBC_MAX_LINENUMBER) && !defined(DUK_USE_ESBC_LIMITS)
3667 #error config option DUK_USE_ESBC_MAX_LINENUMBER requires option DUK_USE_ESBC_LIMITS (which is missing)
3668 #endif
3669 #if defined(DUK_USE_EXEC_TIMEOUT_CHECK) && !defined(DUK_USE_INTERRUPT_COUNTER)
3670 #error config option DUK_USE_EXEC_TIMEOUT_CHECK requires option DUK_USE_INTERRUPT_COUNTER (which is missing)
3671 #endif
3672 #if defined(DUK_USE_EXTSTR_FREE) && !defined(DUK_USE_HSTRING_EXTDATA)
3673 #error config option DUK_USE_EXTSTR_FREE requires option DUK_USE_HSTRING_EXTDATA (which is missing)
3674 #endif
3675 #if defined(DUK_USE_EXTSTR_INTERN_CHECK) && !defined(DUK_USE_HSTRING_EXTDATA)
3676 #error config option DUK_USE_EXTSTR_INTERN_CHECK requires option DUK_USE_HSTRING_EXTDATA (which is missing)
3677 #endif
3678 #if defined(DUK_USE_FULL_TVAL)
3679 #error unsupported config option used (option has been removed): DUK_USE_FULL_TVAL
3680 #endif
3681 #if defined(DUK_USE_FUNCPTR_DEC16) && !defined(DUK_USE_FUNCPTR16)
3682 #error config option DUK_USE_FUNCPTR_DEC16 requires option DUK_USE_FUNCPTR16 (which is missing)
3683 #endif
3684 #if defined(DUK_USE_FUNCPTR_ENC16) && !defined(DUK_USE_FUNCPTR16)
3685 #error config option DUK_USE_FUNCPTR_ENC16 requires option DUK_USE_FUNCPTR16 (which is missing)
3686 #endif
3687 #if defined(DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS)
3688 #error unsupported config option used (option has been removed): DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS
3689 #endif
3690 #if defined(DUK_USE_HEAPPTR16) && defined(DUK_USE_DEBUG)
3691 #error config option DUK_USE_HEAPPTR16 conflicts with option DUK_USE_DEBUG (which is also defined)
3692 #endif
3693 #if defined(DUK_USE_HEAPPTR_DEC16) && !defined(DUK_USE_HEAPPTR16)
3694 #error config option DUK_USE_HEAPPTR_DEC16 requires option DUK_USE_HEAPPTR16 (which is missing)
3695 #endif
3696 #if defined(DUK_USE_HEAPPTR_ENC16) && !defined(DUK_USE_HEAPPTR16)
3697 #error config option DUK_USE_HEAPPTR_ENC16 requires option DUK_USE_HEAPPTR16 (which is missing)
3698 #endif
3699 #if defined(DUK_USE_INTEGER_BE)
3700 #error unsupported config option used (option has been removed): DUK_USE_INTEGER_BE
3701 #endif
3702 #if defined(DUK_USE_INTEGER_BE) && defined(DUK_USE_INTEGER_LE)
3703 #error config option DUK_USE_INTEGER_BE conflicts with option DUK_USE_INTEGER_LE (which is also defined)
3704 #endif
3705 #if defined(DUK_USE_INTEGER_BE) && defined(DUK_USE_INTEGER_ME)
3706 #error config option DUK_USE_INTEGER_BE conflicts with option DUK_USE_INTEGER_ME (which is also defined)
3707 #endif
3708 #if defined(DUK_USE_INTEGER_LE)
3709 #error unsupported config option used (option has been removed): DUK_USE_INTEGER_LE
3710 #endif
3711 #if defined(DUK_USE_INTEGER_LE) && defined(DUK_USE_INTEGER_BE)
3712 #error config option DUK_USE_INTEGER_LE conflicts with option DUK_USE_INTEGER_BE (which is also defined)
3713 #endif
3714 #if defined(DUK_USE_INTEGER_LE) && defined(DUK_USE_INTEGER_ME)
3715 #error config option DUK_USE_INTEGER_LE conflicts with option DUK_USE_INTEGER_ME (which is also defined)
3716 #endif
3717 #if defined(DUK_USE_INTEGER_ME)
3718 #error unsupported config option used (option has been removed): DUK_USE_INTEGER_ME
3719 #endif
3720 #if defined(DUK_USE_INTEGER_ME) && defined(DUK_USE_INTEGER_LE)
3721 #error config option DUK_USE_INTEGER_ME conflicts with option DUK_USE_INTEGER_LE (which is also defined)
3722 #endif
3723 #if defined(DUK_USE_INTEGER_ME) && defined(DUK_USE_INTEGER_BE)
3724 #error config option DUK_USE_INTEGER_ME conflicts with option DUK_USE_INTEGER_BE (which is also defined)
3725 #endif
3726 #if defined(DUK_USE_NO_DOUBLE_ALIASING_SELFTEST)
3727 #error unsupported config option used (option has been removed): DUK_USE_NO_DOUBLE_ALIASING_SELFTEST
3728 #endif
3729 #if defined(DUK_USE_PACKED_TVAL_POSSIBLE)
3730 #error unsupported config option used (option has been removed): DUK_USE_PACKED_TVAL_POSSIBLE
3731 #endif
3732 #if defined(DUK_USE_RDTSC)
3733 #error unsupported config option used (option has been removed): DUK_USE_RDTSC
3734 #endif
3735 #if defined(DUK_USE_ROM_GLOBAL_CLONE) && !defined(DUK_USE_ROM_STRINGS)
3736 #error config option DUK_USE_ROM_GLOBAL_CLONE requires option DUK_USE_ROM_STRINGS (which is missing)
3737 #endif
3738 #if defined(DUK_USE_ROM_GLOBAL_CLONE) && !defined(DUK_USE_ROM_OBJECTS)
3739 #error config option DUK_USE_ROM_GLOBAL_CLONE requires option DUK_USE_ROM_OBJECTS (which is missing)
3740 #endif
3741 #if defined(DUK_USE_ROM_GLOBAL_CLONE) && defined(DUK_USE_ROM_GLOBAL_INHERIT)
3742 #error config option DUK_USE_ROM_GLOBAL_CLONE conflicts with option DUK_USE_ROM_GLOBAL_INHERIT (which is also defined)
3743 #endif
3744 #if defined(DUK_USE_ROM_GLOBAL_INHERIT) && !defined(DUK_USE_ROM_STRINGS)
3745 #error config option DUK_USE_ROM_GLOBAL_INHERIT requires option DUK_USE_ROM_STRINGS (which is missing)
3746 #endif
3747 #if defined(DUK_USE_ROM_GLOBAL_INHERIT) && !defined(DUK_USE_ROM_OBJECTS)
3748 #error config option DUK_USE_ROM_GLOBAL_INHERIT requires option DUK_USE_ROM_OBJECTS (which is missing)
3749 #endif
3750 #if defined(DUK_USE_ROM_GLOBAL_INHERIT) && defined(DUK_USE_ROM_GLOBAL_CLONE)
3751 #error config option DUK_USE_ROM_GLOBAL_INHERIT conflicts with option DUK_USE_ROM_GLOBAL_CLONE (which is also defined)
3752 #endif
3753 #if defined(DUK_USE_ROM_OBJECTS) && !defined(DUK_USE_ROM_STRINGS)
3754 #error config option DUK_USE_ROM_OBJECTS requires option DUK_USE_ROM_STRINGS (which is missing)
3755 #endif
3756 #if defined(DUK_USE_ROM_STRINGS) && !defined(DUK_USE_ROM_OBJECTS)
3757 #error config option DUK_USE_ROM_STRINGS requires option DUK_USE_ROM_OBJECTS (which is missing)
3758 #endif
3759 #if defined(DUK_USE_SETJMP)
3760 #error unsupported config option used (option has been removed): DUK_USE_SETJMP
3761 #endif
3762 #if defined(DUK_USE_SIGSETJMP)
3763 #error unsupported config option used (option has been removed): DUK_USE_SIGSETJMP
3764 #endif
3765 #if defined(DUK_USE_STRTAB_CHAIN_SIZE) && !defined(DUK_USE_STRTAB_CHAIN)
3766 #error config option DUK_USE_STRTAB_CHAIN_SIZE requires option DUK_USE_STRTAB_CHAIN (which is missing)
3767 #endif
3768 #if defined(DUK_USE_TAILCALL) && defined(DUK_USE_NONSTD_FUNC_CALLER_PROPERTY)
3769 #error config option DUK_USE_TAILCALL conflicts with option DUK_USE_NONSTD_FUNC_CALLER_PROPERTY (which is also defined)
3770 #endif
3771 #if defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE)
3772 #error unsupported config option used (option has been removed): DUK_USE_UNALIGNED_ACCESSES_POSSIBLE
3773 #endif
3774 #if defined(DUK_USE_UNDERSCORE_SETJMP)
3775 #error unsupported config option used (option has been removed): DUK_USE_UNDERSCORE_SETJMP
3776 #endif
3777
3778 #if defined(DUK_USE_CPP_EXCEPTIONS) && !defined(__cplusplus)
3779 #error DUK_USE_CPP_EXCEPTIONS enabled but not compiling with a C++ compiler
3780 #endif
3781
3782 /*
3783  *  Convert DUK_USE_BYTEORDER, from whatever source, into currently used
3784  *  internal defines.  If detection failed, #error out.
3785  */
3786
3787 #if defined(DUK_USE_BYTEORDER)
3788 #if (DUK_USE_BYTEORDER == 1)
3789 #define DUK_USE_INTEGER_LE
3790 #define DUK_USE_DOUBLE_LE
3791 #elif (DUK_USE_BYTEORDER == 2)
3792 #define DUK_USE_INTEGER_LE  /* integer endianness is little on purpose */
3793 #define DUK_USE_DOUBLE_ME
3794 #elif (DUK_USE_BYTEORDER == 3)
3795 #define DUK_USE_INTEGER_BE
3796 #define DUK_USE_DOUBLE_BE
3797 #else
3798 #error unsupported: byte order invalid
3799 #endif  /* byte order */
3800 #else
3801 #error unsupported: byte order detection failed
3802 #endif  /* defined(DUK_USE_BYTEORDER) */
3803
3804 #endif  /* DUK_CONFIG_H_INCLUDED */