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 <stddef.h> 25 #include <stdint.h> 26 27 #include "build/build_config.h" 28 29 #if (defined(OS_POSIX) || defined(OS_FUCHSIA)) && \ 30 (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64) 31 #error "inttypes.h has already been included before this header file, but " 32 #error "without __STDC_FORMAT_MACROS defined." 33 #endif 34 35 #if (defined(OS_POSIX) || defined(OS_FUCHSIA)) && !defined(__STDC_FORMAT_MACROS) 36 #define __STDC_FORMAT_MACROS 37 #endif 38 39 #include <inttypes.h> 40 41 #if defined(OS_WIN) 42 43 #if !defined(PRId64) || !defined(PRIu64) || !defined(PRIx64) 44 #error "inttypes.h provided by win toolchain should define these." 45 #endif 46 47 #define WidePRId64 L"I64d" 48 #define WidePRIu64 L"I64u" 49 #define WidePRIx64 L"I64x" 50 51 #if !defined(PRIuS) 52 #define PRIuS "Iu" 53 #endif 54 55 #elif defined(OS_POSIX) || defined(OS_FUCHSIA) 56 57 // GCC will concatenate wide and narrow strings correctly, so nothing needs to 58 // be done here. 59 #define WidePRId64 PRId64 60 #define WidePRIu64 PRIu64 61 #define WidePRIx64 PRIx64 62 63 #if !defined(PRIuS) 64 #define PRIuS "zu" 65 #endif 66 67 #endif // defined(OS_WIN) 68 69 // The size of NSInteger and NSUInteger varies between 32-bit and 64-bit 70 // architectures and Apple does not provides standard format macros and 71 // recommends casting. This has many drawbacks, so instead define macros 72 // for formatting those types. 73 #if defined(OS_MACOSX) 74 #if defined(ARCH_CPU_64_BITS) 75 #if !defined(PRIdNS) 76 #define PRIdNS "ld" 77 #endif 78 #if !defined(PRIuNS) 79 #define PRIuNS "lu" 80 #endif 81 #if !defined(PRIxNS) 82 #define PRIxNS "lx" 83 #endif 84 #else // defined(ARCH_CPU_64_BITS) 85 #if !defined(PRIdNS) 86 #define PRIdNS "d" 87 #endif 88 #if !defined(PRIuNS) 89 #define PRIuNS "u" 90 #endif 91 #if !defined(PRIxNS) 92 #define PRIxNS "x" 93 #endif 94 #endif 95 #endif // defined(OS_MACOSX) 96 97 #endif // BASE_FORMAT_MACROS_H_ 98