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| 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_ |
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