1// Copyright (c) 2009 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef BASE_FORMAT_MACROS_H_
6#define BASE_FORMAT_MACROS_H_
7
8// This file defines the format macros for some integer types.
9
10// To print a 64-bit value in a portable way:
11//   int64_t value;
12//   printf("xyz:%" PRId64, value);
13// The "d" in the macro corresponds to %d; you can also use PRIu64 etc.
14//
15// For wide strings, prepend "Wide" to the macro:
16//   int64_t value;
17//   StringPrintf(L"xyz: %" WidePRId64, value);
18//
19// To print a size_t value in a portable way:
20//   size_t size;
21//   printf("xyz: %" PRIuS, size);
22// The "u" in the macro corresponds to %u, and S is for "size".
23
24#include "build/build_config.h"
25
26#if defined(OS_POSIX)
27
28#if (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64)
29#error "inttypes.h has already been included before this header file, but "
30#error "without __STDC_FORMAT_MACROS defined."
31#endif
32
33#if !defined(__STDC_FORMAT_MACROS)
34#define __STDC_FORMAT_MACROS
35#endif
36
37#include <inttypes.h>
38
39// GCC will concatenate wide and narrow strings correctly, so nothing needs to
40// be done here.
41#define WidePRId64 PRId64
42#define WidePRIu64 PRIu64
43#define WidePRIx64 PRIx64
44
45#if !defined(PRIuS)
46#define PRIuS "zu"
47#endif
48
49// The size of NSInteger and NSUInteger varies between 32-bit and 64-bit
50// architectures and Apple does not provides standard format macros and
51// recommends casting. This has many drawbacks, so instead define macros
52// for formatting those types.
53#if defined(OS_MACOSX)
54#if defined(ARCH_CPU_64_BITS)
55#if !defined(PRIdNS)
56#define PRIdNS "ld"
57#endif
58#if !defined(PRIuNS)
59#define PRIuNS "lu"
60#endif
61#if !defined(PRIxNS)
62#define PRIxNS "lx"
63#endif
64#else  // defined(ARCH_CPU_64_BITS)
65#if !defined(PRIdNS)
66#define PRIdNS "d"
67#endif
68#if !defined(PRIuNS)
69#define PRIuNS "u"
70#endif
71#if !defined(PRIxNS)
72#define PRIxNS "x"
73#endif
74#endif
75#endif  // defined(OS_MACOSX)
76
77#else  // OS_WIN
78
79#if !defined(PRId64)
80#define PRId64 "I64d"
81#endif
82
83#if !defined(PRIu64)
84#define PRIu64 "I64u"
85#endif
86
87#if !defined(PRIx64)
88#define PRIx64 "I64x"
89#endif
90
91#define WidePRId64 L"I64d"
92#define WidePRIu64 L"I64u"
93#define WidePRIx64 L"I64x"
94
95#if !defined(PRIuS)
96#define PRIuS "Iu"
97#endif
98
99#endif
100
101#endif  // BASE_FORMAT_MACROS_H_
102