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1/*
2 * int64.h
3 *
4 * Home page of code is: http://smartmontools.sourceforge.net
5 *
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6 * Copyright (C) 2002-8 Bruce Allen <smartmontools-support@lists.sourceforge.net>
7 * Copyright (C) 2004-8 Christian Franke
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8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
12 * any later version.
13 *
14 * You should have received a copy of the GNU General Public License
15 * (for example COPYING); if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 *
18 */
19
20#ifndef INT64_H_
21#define INT64_H_
22
34ad0c5f 23#define INT64_H_CVSID "$Id: int64.h,v 1.17 2008/03/04 22:09:47 ballen4705 Exp $\n"
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ba59cff1 25// 64 bit integer typedefs and format strings
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26
27#ifdef HAVE_INTTYPES_H
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28// The ISO C99 standard specifies that in C++ implementations the PRI* macros
29// from <inttypes.h> should only be defined if explicitly requested
30#define __STDC_FORMAT_MACROS 1
31#include <inttypes.h> // PRId64, PRIu64, PRIx64 (also includes <stdint.h>)
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32#else
33#ifdef HAVE_STDINT_H
ba59cff1 34#include <stdint.h> // int64_t, uint64_t (usually included above)
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35#else
36#ifdef HAVE_SYS_INTTYPES_H
37#include <sys/inttypes.h>
38#else
39#ifdef HAVE_SYS_INT_TYPES_H
40#include <sys/int_types.h>
41#else
42#if defined(_WIN32) && defined(_MSC_VER)
43// for MSVC 6.0
44typedef __int64 int64_t;
45typedef unsigned __int64 uint64_t;
46#else
47// for systems with above includes missing (like ix86-pc-linux-gnulibc1),
48// default to GCC if types are undefined in types.h
49#include <sys/types.h>
50#ifndef HAVE_INT64_T
51typedef long long int64_t;
52#endif
53#ifndef HAVE_UINT64_T
54typedef unsigned long long uint64_t;
55#endif
56#endif // _WIN32 && _MSC_VER
57#endif // HAVE_SYS_INT_TYPES_H
58#endif // HAVE_SYS_INTTYPES_H
59#endif // HAVE_STDINT_H
60#endif // HAVE_INTTYPES_H
61
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62#ifdef _WIN32
63// for MSVCRT.DLL (used by both MSVC 6.0 and MinGW)
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64#define PRId64 "I64d"
65#define PRIu64 "I64u"
66#define PRIx64 "I64x"
ba59cff1 67#endif // _WIN32
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68
69// If macros not defined in inttypes.h, fix here. Default is GCC
70// style
ba59cff1 71#ifndef PRId64
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72#define PRId64 "lld"
73#endif // ndef PRId64
74
75#ifndef PRIu64
76#define PRIu64 "llu"
77#endif // ndef PRIu64
78
79#ifndef PRIx64
80#define PRIx64 "llx"
81#endif // ndef PRIx64
82
83
84#if defined(_WIN32) && defined(_MSC_VER)
85// for MSVC 6.0: "unsigned __int64 -> double" conversion not implemented (why?-)
86__inline double uint64_to_double(uint64_t ull) {
87 return ((int64_t)ull >= 0 ? (double)(int64_t)ull :
88 ((double)(int64_t)(ull - 9223372036854775808UI64)) + 9223372036854775808.0);
89}
90#else
91#define uint64_to_double(ull) ((double)(ull))
92#endif // _WIN32 && _MSC_VER
93
94
95#endif // INT64_H