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1 | /* |
2 | * Copyright Andrey Semashev 2007 - 2015. | |
3 | * Distributed under the Boost Software License, Version 1.0. | |
4 | * (See accompanying file LICENSE_1_0.txt or copy at | |
5 | * http://www.boost.org/LICENSE_1_0.txt) | |
6 | */ | |
7 | /*! | |
8 | * \file formatting_ostream.hpp | |
9 | * \author Andrey Semashev | |
10 | * \date 11.07.2012 | |
11 | * | |
12 | * The header contains implementation of a string stream used for log record formatting. | |
13 | */ | |
14 | ||
15 | #ifndef BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_ | |
16 | #define BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_ | |
17 | ||
18 | #include <ostream> | |
19 | #include <string> | |
20 | #include <memory> | |
21 | #include <locale> | |
22 | #include <boost/core/enable_if.hpp> | |
23 | #include <boost/core/explicit_operator_bool.hpp> | |
24 | #include <boost/utility/string_ref_fwd.hpp> | |
25 | #include <boost/utility/string_view_fwd.hpp> | |
26 | #include <boost/type_traits/is_enum.hpp> | |
27 | #include <boost/type_traits/is_scalar.hpp> | |
28 | #include <boost/type_traits/remove_cv.hpp> | |
29 | #include <boost/log/detail/config.hpp> | |
30 | #include <boost/log/detail/attachable_sstream_buf.hpp> | |
31 | #include <boost/log/detail/code_conversion.hpp> | |
32 | #include <boost/log/utility/string_literal_fwd.hpp> | |
33 | #include <boost/log/utility/formatting_ostream_fwd.hpp> | |
34 | #include <boost/log/detail/header.hpp> | |
35 | ||
36 | #ifdef BOOST_HAS_PRAGMA_ONCE | |
37 | #pragma once | |
38 | #endif | |
39 | ||
40 | namespace boost { | |
41 | ||
42 | BOOST_LOG_OPEN_NAMESPACE | |
43 | ||
44 | namespace aux { | |
45 | ||
46 | template< typename T, typename R > | |
47 | struct enable_if_streamable_char_type {}; | |
48 | template< typename R > | |
49 | struct enable_if_streamable_char_type< char, R > { typedef R type; }; | |
50 | template< typename R > | |
51 | struct enable_if_streamable_char_type< wchar_t, R > { typedef R type; }; | |
52 | #if !defined(BOOST_LOG_NO_CXX11_CODECVT_FACETS) | |
53 | #if !defined(BOOST_NO_CXX11_CHAR16_T) | |
54 | template< typename R > | |
55 | struct enable_if_streamable_char_type< char16_t, R > { typedef R type; }; | |
56 | #endif | |
57 | #if !defined(BOOST_NO_CXX11_CHAR32_T) | |
58 | template< typename R > | |
59 | struct enable_if_streamable_char_type< char32_t, R > { typedef R type; }; | |
60 | #endif | |
61 | #endif | |
62 | ||
63 | template< typename StreamT, typename T, bool ByValueV, typename R > | |
64 | struct enable_formatting_ostream_generic_operator {}; | |
65 | template< typename CharT, typename TraitsT, typename AllocatorT, typename T, typename R > | |
66 | struct enable_formatting_ostream_generic_operator< basic_formatting_ostream< CharT, TraitsT, AllocatorT >, T, false, R > : | |
67 | public boost::disable_if_c< boost::is_scalar< typename boost::remove_cv< T >::type >::value, R > | |
68 | { | |
69 | }; | |
70 | template< typename CharT, typename TraitsT, typename AllocatorT, typename T, typename R > | |
71 | struct enable_formatting_ostream_generic_operator< basic_formatting_ostream< CharT, TraitsT, AllocatorT >, T, true, R > : | |
72 | public boost::enable_if_c< boost::is_enum< typename boost::remove_cv< T >::type >::value, R > | |
73 | { | |
74 | }; | |
75 | ||
76 | } // namespace aux | |
77 | ||
78 | /*! | |
79 | * \brief Stream wrapper for log records formatting. | |
80 | * | |
81 | * This stream wrapper is used by the library for log record formatting. It implements the standard string stream interface | |
82 | * with a few differences: | |
83 | * | |
84 | * \li It does not derive from standard types <tt>std::basic_ostream</tt>, <tt>std::basic_ios</tt> and <tt>std::ios_base</tt>, | |
85 | * although it tries to implement their interfaces closely. There are a few small differences, mostly regarding <tt>rdbuf</tt> | |
86 | * and <tt>str</tt> signatures, as well as the supported insertion operator overloads. The actual wrapped stream can be accessed | |
87 | * through the <tt>stream</tt> methods. | |
88 | * \li By default, \c bool values are formatted using alphabetical representation rather than numeric. | |
89 | * \li The stream supports writing strings of character types different from the stream character type. The stream will perform | |
90 | * character code conversion as needed using the imbued locale. | |
91 | * \li The stream operates on an external string object rather than on the embedded one. The string can be attached or detached | |
92 | * from the stream dynamically. | |
93 | * | |
94 | * Although <tt>basic_formatting_ostream</tt> does not derive from <tt>std::basic_ostream</tt>, users are not required to add | |
95 | * special overloads of \c operator<< for it since the stream will by default reuse the operators for <tt>std::basic_ostream</tt>. | |
96 | * However, one can define special overloads of \c operator<< for <tt>basic_formatting_ostream</tt> if a certain type needs | |
97 | * special formatting when output to log. | |
98 | */ | |
99 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
100 | class basic_formatting_ostream | |
101 | { | |
102 | public: | |
103 | //! Character type | |
104 | typedef CharT char_type; | |
105 | //! Character traits | |
106 | typedef TraitsT traits_type; | |
107 | //! Memory allocator | |
108 | typedef AllocatorT allocator_type; | |
109 | //! Stream buffer type | |
110 | typedef boost::log::aux::basic_ostringstreambuf< char_type, traits_type, allocator_type > streambuf_type; | |
111 | //! Target string type | |
112 | typedef typename streambuf_type::string_type string_type; | |
113 | ||
114 | //! Stream type | |
115 | typedef std::basic_ostream< char_type, traits_type > ostream_type; | |
116 | //! Stream position type | |
117 | typedef typename ostream_type::pos_type pos_type; | |
118 | //! Stream offset type | |
119 | typedef typename ostream_type::off_type off_type; | |
120 | //! Integer type for characters | |
121 | typedef typename ostream_type::int_type int_type; | |
122 | ||
123 | typedef typename ostream_type::failure failure; | |
124 | typedef typename ostream_type::fmtflags fmtflags; | |
125 | typedef typename ostream_type::iostate iostate; | |
126 | typedef typename ostream_type::openmode openmode; | |
127 | typedef typename ostream_type::seekdir seekdir; | |
128 | typedef typename ostream_type::Init Init; | |
129 | ||
130 | typedef typename ostream_type::event event; | |
131 | typedef typename ostream_type::event_callback event_callback; | |
132 | ||
133 | class sentry : | |
134 | public ostream_type::sentry | |
135 | { | |
136 | typedef typename ostream_type::sentry base_type; | |
137 | ||
138 | public: | |
139 | explicit sentry(basic_formatting_ostream& strm) : base_type(strm.stream()) | |
140 | { | |
141 | } | |
142 | ||
143 | // A workaround for Solaris Studio 12.4 compiler, see: https://svn.boost.org/trac/boost/ticket/11545 | |
144 | BOOST_EXPLICIT_OPERATOR_BOOL() | |
145 | bool operator! () const { return !static_cast< base_type const& >(*this); } | |
146 | ||
147 | BOOST_DELETED_FUNCTION(sentry(sentry const&)) | |
148 | BOOST_DELETED_FUNCTION(sentry& operator= (sentry const&)) | |
149 | }; | |
150 | ||
151 | protected: | |
152 | // Function types | |
153 | typedef std::ios_base& (*ios_base_manip)(std::ios_base&); | |
154 | typedef std::basic_ios< char_type, traits_type >& (*basic_ios_manip)(std::basic_ios< char_type, traits_type >&); | |
155 | typedef ostream_type& (*stream_manip)(ostream_type&); | |
156 | ||
157 | public: | |
158 | static BOOST_CONSTEXPR_OR_CONST fmtflags boolalpha = ostream_type::boolalpha; | |
159 | static BOOST_CONSTEXPR_OR_CONST fmtflags dec = ostream_type::dec; | |
160 | static BOOST_CONSTEXPR_OR_CONST fmtflags fixed = ostream_type::fixed; | |
161 | static BOOST_CONSTEXPR_OR_CONST fmtflags hex = ostream_type::hex; | |
162 | static BOOST_CONSTEXPR_OR_CONST fmtflags internal = ostream_type::internal; | |
163 | static BOOST_CONSTEXPR_OR_CONST fmtflags left = ostream_type::left; | |
164 | static BOOST_CONSTEXPR_OR_CONST fmtflags oct = ostream_type::oct; | |
165 | static BOOST_CONSTEXPR_OR_CONST fmtflags right = ostream_type::right; | |
166 | static BOOST_CONSTEXPR_OR_CONST fmtflags scientific = ostream_type::scientific; | |
167 | static BOOST_CONSTEXPR_OR_CONST fmtflags showbase = ostream_type::showbase; | |
168 | static BOOST_CONSTEXPR_OR_CONST fmtflags showpoint = ostream_type::showpoint; | |
169 | static BOOST_CONSTEXPR_OR_CONST fmtflags skipws = ostream_type::skipws; | |
170 | static BOOST_CONSTEXPR_OR_CONST fmtflags unitbuf = ostream_type::unitbuf; | |
171 | static BOOST_CONSTEXPR_OR_CONST fmtflags uppercase = ostream_type::uppercase; | |
172 | static BOOST_CONSTEXPR_OR_CONST fmtflags adjustfield = ostream_type::adjustfield; | |
173 | static BOOST_CONSTEXPR_OR_CONST fmtflags basefield = ostream_type::basefield; | |
174 | static BOOST_CONSTEXPR_OR_CONST fmtflags floatfield = ostream_type::floatfield; | |
175 | ||
176 | static BOOST_CONSTEXPR_OR_CONST iostate badbit = ostream_type::badbit; | |
177 | static BOOST_CONSTEXPR_OR_CONST iostate eofbit = ostream_type::eofbit; | |
178 | static BOOST_CONSTEXPR_OR_CONST iostate failbit = ostream_type::failbit; | |
179 | static BOOST_CONSTEXPR_OR_CONST iostate goodbit = ostream_type::goodbit; | |
180 | ||
181 | static BOOST_CONSTEXPR_OR_CONST openmode app = ostream_type::app; | |
182 | static BOOST_CONSTEXPR_OR_CONST openmode ate = ostream_type::ate; | |
183 | static BOOST_CONSTEXPR_OR_CONST openmode binary = ostream_type::binary; | |
184 | static BOOST_CONSTEXPR_OR_CONST openmode in = ostream_type::in; | |
185 | static BOOST_CONSTEXPR_OR_CONST openmode out = ostream_type::out; | |
186 | static BOOST_CONSTEXPR_OR_CONST openmode trunc = ostream_type::trunc; | |
187 | ||
188 | static BOOST_CONSTEXPR_OR_CONST seekdir beg = ostream_type::beg; | |
189 | static BOOST_CONSTEXPR_OR_CONST seekdir cur = ostream_type::cur; | |
190 | static BOOST_CONSTEXPR_OR_CONST seekdir end = ostream_type::end; | |
191 | ||
192 | static BOOST_CONSTEXPR_OR_CONST event erase_event = ostream_type::erase_event; | |
193 | static BOOST_CONSTEXPR_OR_CONST event imbue_event = ostream_type::imbue_event; | |
194 | static BOOST_CONSTEXPR_OR_CONST event copyfmt_event = ostream_type::copyfmt_event; | |
195 | ||
196 | private: | |
197 | mutable streambuf_type m_streambuf; | |
198 | ostream_type m_stream; | |
199 | ||
200 | public: | |
201 | /*! | |
202 | * Default constructor. Creates an empty record that is equivalent to the invalid record handle. | |
203 | * The stream capability is not available after construction. | |
204 | * | |
205 | * \post <tt>!*this == true</tt> | |
206 | */ | |
207 | basic_formatting_ostream() : m_stream(&m_streambuf) | |
208 | { | |
209 | init_stream(); | |
210 | } | |
211 | ||
212 | /*! | |
213 | * Initializing constructor. Attaches the string to the constructed stream. | |
214 | * The string will be used to store the formatted characters. | |
215 | * | |
216 | * \post <tt>!*this == false</tt> | |
217 | * \param str The string buffer to attach. | |
218 | */ | |
219 | explicit basic_formatting_ostream(string_type& str) : | |
220 | m_streambuf(str), | |
221 | m_stream(&m_streambuf) | |
222 | { | |
223 | init_stream(); | |
224 | } | |
225 | ||
226 | /*! | |
227 | * Destructor. Destroys the record, releases any sinks and attribute values that were involved in processing this record. | |
228 | */ | |
229 | ~basic_formatting_ostream() | |
230 | { | |
231 | if (m_streambuf.storage()) | |
232 | flush(); | |
233 | } | |
234 | ||
235 | /*! | |
236 | * Attaches the stream to the string. The string will be used to store the formatted characters. | |
237 | * | |
238 | * \param str The string buffer to attach. | |
239 | */ | |
240 | void attach(string_type& str) | |
241 | { | |
242 | m_streambuf.attach(str); | |
243 | m_stream.clear(ostream_type::goodbit); | |
244 | } | |
245 | /*! | |
246 | * Detaches the stream from the string. Any buffered data is flushed to the string. | |
247 | */ | |
248 | void detach() | |
249 | { | |
250 | m_streambuf.detach(); | |
251 | m_stream.clear(ostream_type::badbit); | |
252 | } | |
253 | ||
254 | /*! | |
255 | * \returns Reference to the attached string. The string must be attached before calling this method. | |
256 | */ | |
257 | string_type const& str() const | |
258 | { | |
259 | string_type* const storage = m_streambuf.storage(); | |
260 | BOOST_ASSERT(storage != NULL); | |
261 | ||
262 | m_streambuf.pubsync(); | |
263 | ||
264 | return *storage; | |
265 | } | |
266 | ||
267 | /*! | |
268 | * \returns Reference to the wrapped stream | |
269 | */ | |
270 | ostream_type& stream() { return m_stream; } | |
271 | ||
272 | /*! | |
273 | * \returns Reference to the wrapped stream | |
274 | */ | |
275 | ostream_type const& stream() const { return m_stream; } | |
276 | ||
277 | // std::ios_base method forwarders | |
278 | fmtflags flags() const { return m_stream.flags(); } | |
279 | fmtflags flags(fmtflags f) { return m_stream.flags(f); } | |
280 | fmtflags setf(fmtflags f) { return m_stream.setf(f); } | |
281 | fmtflags setf(fmtflags f, fmtflags mask) { return m_stream.setf(f, mask); } | |
282 | void unsetf(fmtflags f) { m_stream.unsetf(f); } | |
283 | ||
284 | std::streamsize precision() const { return m_stream.precision(); } | |
285 | std::streamsize precision(std::streamsize p) { return m_stream.precision(p); } | |
286 | ||
287 | std::streamsize width() const { return m_stream.width(); } | |
288 | std::streamsize width(std::streamsize w) { return m_stream.width(w); } | |
289 | ||
290 | std::locale getloc() const { return m_stream.getloc(); } | |
291 | std::locale imbue(std::locale const& loc) { return m_stream.imbue(loc); } | |
292 | ||
293 | static int xalloc() { return ostream_type::xalloc(); } | |
294 | long& iword(int index) { return m_stream.iword(index); } | |
295 | void*& pword(int index) { return m_stream.pword(index); } | |
296 | ||
297 | void register_callback(event_callback fn, int index) { m_stream.register_callback(fn, index); } | |
298 | ||
299 | static bool sync_with_stdio(bool sync = true) { return ostream_type::sync_with_stdio(sync); } | |
300 | ||
301 | // std::basic_ios method forwarders | |
302 | BOOST_EXPLICIT_OPERATOR_BOOL() | |
303 | bool operator! () const { return !m_stream; } | |
304 | ||
305 | iostate rdstate() const { return m_stream.rdstate(); } | |
306 | void clear(iostate state = goodbit) { m_stream.clear(state); } | |
307 | void setstate(iostate state) { m_stream.setstate(state); } | |
308 | bool good() const { return m_stream.good(); } | |
309 | bool eof() const { return m_stream.eof(); } | |
310 | bool fail() const { return m_stream.fail(); } | |
311 | bool bad() const { return m_stream.bad(); } | |
312 | ||
313 | iostate exceptions() const { return m_stream.exceptions(); } | |
314 | void exceptions(iostate s) { m_stream.exceptions(s); } | |
315 | ||
316 | ostream_type* tie() const { return m_stream.tie(); } | |
317 | ostream_type* tie(ostream_type* strm) { return m_stream.tie(strm); } | |
318 | ||
319 | streambuf_type* rdbuf() const { return &m_streambuf; } | |
320 | ||
321 | basic_formatting_ostream& copyfmt(std::basic_ios< char_type, traits_type >& rhs) | |
322 | { | |
323 | m_stream.copyfmt(rhs); | |
324 | return *this; | |
325 | } | |
326 | basic_formatting_ostream& copyfmt(basic_formatting_ostream& rhs) | |
327 | { | |
328 | m_stream.copyfmt(rhs.stream()); | |
329 | return *this; | |
330 | } | |
331 | ||
332 | char_type fill() const { return m_stream.fill(); } | |
333 | char_type fill(char_type ch) { return m_stream.fill(ch); } | |
334 | ||
335 | char narrow(char_type ch, char def) const { return m_stream.narrow(ch, def); } | |
336 | char_type widen(char ch) const { return m_stream.widen(ch); } | |
337 | ||
338 | // std::basic_ostream method forwarders | |
339 | basic_formatting_ostream& flush() | |
340 | { | |
341 | m_stream.flush(); | |
342 | return *this; | |
343 | } | |
344 | ||
345 | pos_type tellp() { return m_stream.tellp(); } | |
346 | basic_formatting_ostream& seekp(pos_type pos) | |
347 | { | |
348 | m_stream.seekp(pos); | |
349 | return *this; | |
350 | } | |
351 | basic_formatting_ostream& seekp(off_type off, std::ios_base::seekdir dir) | |
352 | { | |
353 | m_stream.seekp(off, dir); | |
354 | return *this; | |
355 | } | |
356 | ||
357 | basic_formatting_ostream& put(char_type c) | |
358 | { | |
359 | m_stream.put(c); | |
360 | return *this; | |
361 | } | |
362 | ||
363 | template< typename OtherCharT > | |
364 | typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
365 | put(OtherCharT c) | |
366 | { | |
367 | write(&c, 1); | |
368 | return *this; | |
369 | } | |
370 | ||
371 | basic_formatting_ostream& write(const char_type* p, std::streamsize size) | |
372 | { | |
373 | m_stream.write(p, size); | |
374 | return *this; | |
375 | } | |
376 | ||
377 | template< typename OtherCharT > | |
378 | typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
379 | write(const OtherCharT* p, std::streamsize size) | |
380 | { | |
381 | sentry guard(*this); | |
382 | if (!!guard) | |
383 | { | |
384 | m_stream.flush(); | |
385 | ||
386 | if (!m_streambuf.storage_overflow()) | |
387 | { | |
388 | string_type* storage = m_streambuf.storage(); | |
389 | if (!aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_streambuf.max_size(), m_stream.getloc())) | |
390 | m_streambuf.storage_overflow(true); | |
391 | } | |
392 | } | |
393 | ||
394 | return *this; | |
395 | } | |
396 | ||
397 | basic_formatting_ostream& operator<< (ios_base_manip manip) | |
398 | { | |
399 | m_stream << manip; | |
400 | return *this; | |
401 | } | |
402 | basic_formatting_ostream& operator<< (basic_ios_manip manip) | |
403 | { | |
404 | m_stream << manip; | |
405 | return *this; | |
406 | } | |
407 | basic_formatting_ostream& operator<< (stream_manip manip) | |
408 | { | |
409 | m_stream << manip; | |
410 | return *this; | |
411 | } | |
412 | ||
413 | basic_formatting_ostream& operator<< (char c) | |
414 | { | |
415 | return this->formatted_write(&c, 1); | |
416 | } | |
417 | basic_formatting_ostream& operator<< (const char* p) | |
418 | { | |
419 | return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char >::length(p))); | |
420 | } | |
421 | ||
422 | // When no native character type is supported, the following overloads are disabled as they have ambiguous meaning. | |
423 | // Use basic_string_view or basic_string to explicitly indicate that the data is a string. | |
424 | #if !defined(BOOST_NO_INTRINSIC_WCHAR_T) | |
425 | basic_formatting_ostream& operator<< (wchar_t c) | |
426 | { | |
427 | return this->formatted_write(&c, 1); | |
428 | } | |
429 | basic_formatting_ostream& operator<< (const wchar_t* p) | |
430 | { | |
431 | return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< wchar_t >::length(p))); | |
432 | } | |
433 | #endif | |
434 | #if !defined(BOOST_LOG_NO_CXX11_CODECVT_FACETS) | |
435 | #if !defined(BOOST_NO_CXX11_CHAR16_T) | |
436 | basic_formatting_ostream& operator<< (char16_t c) | |
437 | { | |
438 | return this->formatted_write(&c, 1); | |
439 | } | |
440 | basic_formatting_ostream& operator<< (const char16_t* p) | |
441 | { | |
442 | return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char16_t >::length(p))); | |
443 | } | |
444 | #endif | |
445 | #if !defined(BOOST_NO_CXX11_CHAR32_T) | |
446 | basic_formatting_ostream& operator<< (char32_t c) | |
447 | { | |
448 | return this->formatted_write(&c, 1); | |
449 | } | |
450 | basic_formatting_ostream& operator<< (const char32_t* p) | |
451 | { | |
452 | return this->formatted_write(p, static_cast< std::streamsize >(std::char_traits< char32_t >::length(p))); | |
453 | } | |
454 | #endif | |
455 | #endif | |
456 | ||
457 | basic_formatting_ostream& operator<< (bool value) | |
458 | { | |
459 | m_stream << value; | |
460 | return *this; | |
461 | } | |
462 | basic_formatting_ostream& operator<< (signed char value) | |
463 | { | |
464 | m_stream << value; | |
465 | return *this; | |
466 | } | |
467 | basic_formatting_ostream& operator<< (unsigned char value) | |
468 | { | |
469 | m_stream << value; | |
470 | return *this; | |
471 | } | |
472 | basic_formatting_ostream& operator<< (short value) | |
473 | { | |
474 | m_stream << value; | |
475 | return *this; | |
476 | } | |
477 | basic_formatting_ostream& operator<< (unsigned short value) | |
478 | { | |
479 | m_stream << value; | |
480 | return *this; | |
481 | } | |
482 | basic_formatting_ostream& operator<< (int value) | |
483 | { | |
484 | m_stream << value; | |
485 | return *this; | |
486 | } | |
487 | basic_formatting_ostream& operator<< (unsigned int value) | |
488 | { | |
489 | m_stream << value; | |
490 | return *this; | |
491 | } | |
492 | basic_formatting_ostream& operator<< (long value) | |
493 | { | |
494 | m_stream << value; | |
495 | return *this; | |
496 | } | |
497 | basic_formatting_ostream& operator<< (unsigned long value) | |
498 | { | |
499 | m_stream << value; | |
500 | return *this; | |
501 | } | |
502 | #if !defined(BOOST_NO_LONG_LONG) | |
503 | basic_formatting_ostream& operator<< (long long value) | |
504 | { | |
505 | m_stream << value; | |
506 | return *this; | |
507 | } | |
508 | basic_formatting_ostream& operator<< (unsigned long long value) | |
509 | { | |
510 | m_stream << value; | |
511 | return *this; | |
512 | } | |
513 | #endif | |
514 | ||
515 | basic_formatting_ostream& operator<< (float value) | |
516 | { | |
517 | m_stream << value; | |
518 | return *this; | |
519 | } | |
520 | basic_formatting_ostream& operator<< (double value) | |
521 | { | |
522 | m_stream << value; | |
523 | return *this; | |
524 | } | |
525 | basic_formatting_ostream& operator<< (long double value) | |
526 | { | |
527 | m_stream << value; | |
528 | return *this; | |
529 | } | |
530 | ||
531 | basic_formatting_ostream& operator<< (const void* value) | |
532 | { | |
533 | m_stream << value; | |
534 | return *this; | |
535 | } | |
536 | ||
537 | basic_formatting_ostream& operator<< (std::basic_streambuf< char_type, traits_type >* buf) | |
538 | { | |
539 | m_stream << buf; | |
540 | return *this; | |
541 | } | |
542 | ||
543 | template< typename OtherCharT, typename OtherTraitsT, typename OtherAllocatorT > | |
544 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
545 | operator<< (basic_formatting_ostream& strm, std::basic_string< OtherCharT, OtherTraitsT, OtherAllocatorT > const& str) | |
546 | { | |
547 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
548 | } | |
549 | ||
550 | template< typename OtherCharT, typename OtherTraitsT > | |
551 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
552 | operator<< (basic_formatting_ostream& strm, basic_string_literal< OtherCharT, OtherTraitsT > const& str) | |
553 | { | |
554 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
555 | } | |
556 | ||
557 | template< typename OtherCharT, typename OtherTraitsT > | |
558 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
559 | operator<< (basic_formatting_ostream& strm, basic_string_view< OtherCharT, OtherTraitsT > const& str) | |
560 | { | |
561 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
562 | } | |
563 | ||
564 | // Deprecated overload | |
565 | template< typename OtherCharT, typename OtherTraitsT > | |
566 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
567 | operator<< (basic_formatting_ostream& strm, basic_string_ref< OtherCharT, OtherTraitsT > const& str) | |
568 | { | |
569 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
570 | } | |
571 | ||
572 | template< typename OtherCharT, typename OtherTraitsT, typename OtherAllocatorT > | |
573 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
574 | operator<< (basic_formatting_ostream& strm, std::basic_string< OtherCharT, OtherTraitsT, OtherAllocatorT >& str) | |
575 | { | |
576 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
577 | } | |
578 | ||
579 | template< typename OtherCharT, typename OtherTraitsT > | |
580 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
581 | operator<< (basic_formatting_ostream& strm, basic_string_literal< OtherCharT, OtherTraitsT >& str) | |
582 | { | |
583 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
584 | } | |
585 | ||
586 | template< typename OtherCharT, typename OtherTraitsT > | |
587 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
588 | operator<< (basic_formatting_ostream& strm, basic_string_view< OtherCharT, OtherTraitsT >& str) | |
589 | { | |
590 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
591 | } | |
592 | ||
593 | // Deprecated overload | |
594 | template< typename OtherCharT, typename OtherTraitsT > | |
595 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
596 | operator<< (basic_formatting_ostream& strm, basic_string_ref< OtherCharT, OtherTraitsT >& str) | |
597 | { | |
598 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
599 | } | |
600 | ||
601 | #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) | |
602 | template< typename OtherCharT, typename OtherTraitsT, typename OtherAllocatorT > | |
603 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
604 | operator<< (basic_formatting_ostream&& strm, std::basic_string< OtherCharT, OtherTraitsT, OtherAllocatorT > const& str) | |
605 | { | |
606 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
607 | } | |
608 | ||
609 | template< typename OtherCharT, typename OtherTraitsT > | |
610 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
611 | operator<< (basic_formatting_ostream&& strm, basic_string_literal< OtherCharT, OtherTraitsT > const& str) | |
612 | { | |
613 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
614 | } | |
615 | ||
616 | template< typename OtherCharT, typename OtherTraitsT > | |
617 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
618 | operator<< (basic_formatting_ostream&& strm, basic_string_view< OtherCharT, OtherTraitsT > const& str) | |
619 | { | |
620 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
621 | } | |
622 | ||
623 | // Deprecated overload | |
624 | template< typename OtherCharT, typename OtherTraitsT > | |
625 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
626 | operator<< (basic_formatting_ostream&& strm, basic_string_ref< OtherCharT, OtherTraitsT > const& str) | |
627 | { | |
628 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
629 | } | |
630 | ||
631 | template< typename OtherCharT, typename OtherTraitsT, typename OtherAllocatorT > | |
632 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
633 | operator<< (basic_formatting_ostream&& strm, std::basic_string< OtherCharT, OtherTraitsT, OtherAllocatorT >& str) | |
634 | { | |
635 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
636 | } | |
637 | ||
638 | template< typename OtherCharT, typename OtherTraitsT > | |
639 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
640 | operator<< (basic_formatting_ostream&& strm, basic_string_literal< OtherCharT, OtherTraitsT >& str) | |
641 | { | |
642 | return strm.formatted_write(str.c_str(), static_cast< std::streamsize >(str.size())); | |
643 | } | |
644 | ||
645 | template< typename OtherCharT, typename OtherTraitsT > | |
646 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
647 | operator<< (basic_formatting_ostream&& strm, basic_string_view< OtherCharT, OtherTraitsT >& str) | |
648 | { | |
649 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
650 | } | |
651 | ||
652 | // Deprecated overload | |
653 | template< typename OtherCharT, typename OtherTraitsT > | |
654 | friend typename aux::enable_if_streamable_char_type< OtherCharT, basic_formatting_ostream& >::type | |
655 | operator<< (basic_formatting_ostream&& strm, basic_string_ref< OtherCharT, OtherTraitsT >& str) | |
656 | { | |
657 | return strm.formatted_write(str.data(), static_cast< std::streamsize >(str.size())); | |
658 | } | |
659 | #endif | |
660 | ||
661 | protected: | |
662 | void init_stream() | |
663 | { | |
664 | m_stream.exceptions(ostream_type::goodbit); | |
665 | m_stream.clear(m_streambuf.storage() ? ostream_type::goodbit : ostream_type::badbit); | |
666 | m_stream.flags | |
667 | ( | |
668 | ostream_type::dec | | |
669 | ostream_type::skipws | | |
670 | ostream_type::boolalpha // this differs from the default stream flags but makes logs look better | |
671 | ); | |
672 | m_stream.width(0); | |
673 | m_stream.precision(6); | |
674 | m_stream.fill(static_cast< char_type >(' ')); | |
675 | } | |
676 | ||
677 | private: | |
678 | basic_formatting_ostream& formatted_write(const char_type* p, std::streamsize size) | |
679 | { | |
680 | sentry guard(*this); | |
681 | if (!!guard) | |
682 | { | |
683 | m_stream.flush(); | |
684 | ||
685 | if (m_stream.width() <= size) | |
686 | m_streambuf.append(p, static_cast< std::size_t >(size)); | |
687 | else | |
688 | this->aligned_write(p, size); | |
689 | ||
690 | m_stream.width(0); | |
691 | } | |
692 | ||
693 | return *this; | |
694 | } | |
695 | ||
696 | template< typename OtherCharT > | |
697 | basic_formatting_ostream& formatted_write(const OtherCharT* p, std::streamsize size) | |
698 | { | |
699 | sentry guard(*this); | |
700 | if (!!guard) | |
701 | { | |
702 | m_stream.flush(); | |
703 | ||
704 | if (m_stream.width() <= size) | |
705 | { | |
706 | if (!m_streambuf.storage_overflow()) | |
707 | { | |
708 | if (!aux::code_convert(p, static_cast< std::size_t >(size), *m_streambuf.storage(), m_streambuf.max_size(), m_stream.getloc())) | |
709 | m_streambuf.storage_overflow(true); | |
710 | } | |
711 | } | |
712 | else | |
713 | this->aligned_write(p, size); | |
714 | ||
715 | m_stream.width(0); | |
716 | } | |
717 | ||
718 | return *this; | |
719 | } | |
720 | ||
721 | void aligned_write(const char_type* p, std::streamsize size); | |
722 | ||
723 | template< typename OtherCharT > | |
724 | void aligned_write(const OtherCharT* p, std::streamsize size); | |
725 | ||
726 | //! Copy constructor (closed) | |
727 | BOOST_DELETED_FUNCTION(basic_formatting_ostream(basic_formatting_ostream const& that)) | |
728 | //! Assignment (closed) | |
729 | BOOST_DELETED_FUNCTION(basic_formatting_ostream& operator= (basic_formatting_ostream const& that)) | |
730 | }; | |
731 | ||
732 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
733 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::boolalpha; | |
734 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
735 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::dec; | |
736 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
737 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fixed; | |
738 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
739 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::hex; | |
740 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
741 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::internal; | |
742 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
743 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::left; | |
744 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
745 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::oct; | |
746 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
747 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::right; | |
748 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
749 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::scientific; | |
750 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
751 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::showbase; | |
752 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
753 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::showpoint; | |
754 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
755 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::skipws; | |
756 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
757 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::unitbuf; | |
758 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
759 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::uppercase; | |
760 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
761 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::adjustfield; | |
762 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
763 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::basefield; | |
764 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
765 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::fmtflags basic_formatting_ostream< CharT, TraitsT, AllocatorT >::floatfield; | |
766 | ||
767 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
768 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::badbit; | |
769 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
770 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::eofbit; | |
771 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
772 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::failbit; | |
773 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
774 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::iostate basic_formatting_ostream< CharT, TraitsT, AllocatorT >::goodbit; | |
775 | ||
776 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
777 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::app; | |
778 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
779 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::ate; | |
780 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
781 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::binary; | |
782 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
783 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::in; | |
784 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
785 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::out; | |
786 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
787 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::openmode basic_formatting_ostream< CharT, TraitsT, AllocatorT >::trunc; | |
788 | ||
789 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
790 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::beg; | |
791 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
792 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::cur; | |
793 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
794 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::seekdir basic_formatting_ostream< CharT, TraitsT, AllocatorT >::end; | |
795 | ||
796 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
797 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::erase_event; | |
798 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
799 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::imbue_event; | |
800 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
801 | BOOST_CONSTEXPR_OR_CONST typename basic_formatting_ostream< CharT, TraitsT, AllocatorT >::event basic_formatting_ostream< CharT, TraitsT, AllocatorT >::copyfmt_event; | |
802 | ||
803 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
804 | void basic_formatting_ostream< CharT, TraitsT, AllocatorT >::aligned_write(const char_type* p, std::streamsize size) | |
805 | { | |
806 | typename string_type::size_type const alignment_size = | |
807 | static_cast< typename string_type::size_type >(m_stream.width() - size); | |
808 | const bool align_left = (m_stream.flags() & ostream_type::adjustfield) == ostream_type::left; | |
809 | if (align_left) | |
810 | { | |
811 | m_streambuf.append(p, static_cast< std::size_t >(size)); | |
812 | m_streambuf.append(alignment_size, m_stream.fill()); | |
813 | } | |
814 | else | |
815 | { | |
816 | m_streambuf.append(alignment_size, m_stream.fill()); | |
817 | m_streambuf.append(p, static_cast< std::size_t >(size)); | |
818 | } | |
819 | } | |
820 | ||
821 | template< typename CharT, typename TraitsT, typename AllocatorT > | |
822 | template< typename OtherCharT > | |
823 | void basic_formatting_ostream< CharT, TraitsT, AllocatorT >::aligned_write(const OtherCharT* p, std::streamsize size) | |
824 | { | |
825 | string_type* const storage = m_streambuf.storage(); | |
826 | typename string_type::size_type const alignment_size = | |
827 | static_cast< typename string_type::size_type >(m_stream.width() - size); | |
828 | const bool align_left = (m_stream.flags() & ostream_type::adjustfield) == ostream_type::left; | |
829 | if (align_left) | |
830 | { | |
831 | if (!m_streambuf.storage_overflow()) | |
832 | { | |
833 | if (!aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_streambuf.max_size(), m_stream.getloc())) | |
834 | m_streambuf.storage_overflow(true); | |
835 | } | |
836 | m_streambuf.append(alignment_size, m_stream.fill()); | |
837 | } | |
838 | else | |
839 | { | |
840 | m_streambuf.append(alignment_size, m_stream.fill()); | |
841 | if (!m_streambuf.storage_overflow()) | |
842 | { | |
843 | if (!aux::code_convert(p, static_cast< std::size_t >(size), *storage, m_streambuf.max_size(), m_stream.getloc())) | |
844 | m_streambuf.storage_overflow(true); | |
845 | } | |
846 | } | |
847 | } | |
848 | ||
849 | // Implementation note: these operators below should be the least attractive for the compiler | |
850 | // so that user's overloads are chosen, when present. We use function template partial ordering for this purpose. | |
851 | // We also don't use perfect forwarding for the right hand argument because in this case the generic overload | |
852 | // would be more preferred than the typical one written by users: | |
853 | // | |
854 | // formatting_ostream& operator<< (formatting_ostream& strm, my_type const& arg); | |
855 | // | |
856 | // This is because my_type rvalues require adding const to the type, which counts as a conversion that is not required | |
857 | // if there is a perfect forwarding overload. | |
858 | template< typename StreamT, typename T > | |
859 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, true, StreamT& >::type | |
860 | operator<< (StreamT& strm, T value) | |
861 | { | |
862 | strm.stream() << value; | |
863 | return strm; | |
864 | } | |
865 | ||
866 | template< typename StreamT, typename T > | |
867 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, false, StreamT& >::type | |
868 | operator<< (StreamT& strm, T const& value) | |
869 | { | |
870 | strm.stream() << value; | |
871 | return strm; | |
872 | } | |
873 | ||
874 | template< typename StreamT, typename T > | |
875 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, false, StreamT& >::type | |
876 | operator<< (StreamT& strm, T& value) | |
877 | { | |
878 | strm.stream() << value; | |
879 | return strm; | |
880 | } | |
881 | ||
882 | #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) | |
883 | ||
884 | template< typename StreamT, typename T > | |
885 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, true, StreamT& >::type | |
886 | operator<< (StreamT&& strm, T value) | |
887 | { | |
888 | strm.stream() << value; | |
889 | return strm; | |
890 | } | |
891 | ||
892 | template< typename StreamT, typename T > | |
893 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, false, StreamT& >::type | |
894 | operator<< (StreamT&& strm, T const& value) | |
895 | { | |
896 | strm.stream() << value; | |
897 | return strm; | |
898 | } | |
899 | ||
900 | template< typename StreamT, typename T > | |
901 | inline typename boost::log::aux::enable_formatting_ostream_generic_operator< StreamT, T, false, StreamT& >::type | |
902 | operator<< (StreamT&& strm, T& value) | |
903 | { | |
904 | strm.stream() << value; | |
905 | return strm; | |
906 | } | |
907 | ||
908 | #endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) | |
909 | ||
910 | BOOST_LOG_CLOSE_NAMESPACE // namespace log | |
911 | ||
912 | } // namespace boost | |
913 | ||
914 | #include <boost/log/detail/footer.hpp> | |
915 | ||
916 | #endif // BOOST_LOG_UTILITY_FORMATTING_OSTREAM_HPP_INCLUDED_ |