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(_INTTYPES_H) || defined(_INTTYPES_H_)) && \ 30 !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(__STDC_FORMAT_MACROS) 36 #define __STDC_FORMAT_MACROS 37 #endif 38 39 #include <inttypes.h> 40 41 #if defined(OS_POSIX) 42 43 // GCC will concatenate wide and narrow strings correctly, so nothing needs to 44 // be done here. 45 #define WidePRId64 PRId64 46 #define WidePRIu64 PRIu64 47 #define WidePRIx64 PRIx64 48 49 #if !defined(PRIuS) 50 #define PRIuS "zu" 51 #endif 52 53 // The size of NSInteger and NSUInteger varies between 32-bit and 64-bit 54 // architectures and Apple does not provides standard format macros and 55 // recommends casting. This has many drawbacks, so instead define macros 56 // for formatting those types. 57 #if defined(OS_MACOSX) 58 #if defined(ARCH_CPU_64_BITS) 59 #if !defined(PRIdNS) 60 #define PRIdNS "ld" 61 #endif 62 #if !defined(PRIuNS) 63 #define PRIuNS "lu" 64 #endif 65 #if !defined(PRIxNS) 66 #define PRIxNS "lx" 67 #endif 68 #else // defined(ARCH_CPU_64_BITS) 69 #if !defined(PRIdNS) 70 #define PRIdNS "d" 71 #endif 72 #if !defined(PRIuNS) 73 #define PRIuNS "u" 74 #endif 75 #if !defined(PRIxNS) 76 #define PRIxNS "x" 77 #endif 78 #endif 79 #endif // defined(OS_MACOSX) 80 81 #else // OS_WIN 82 83 #if !defined(PRId64) || !defined(PRIu64) || !defined(PRIx64) 84 #error "inttypes.h provided by win toolchain should define these." 85 #endif 86 87 #define WidePRId64 L"I64d" 88 #define WidePRIu64 L"I64u" 89 #define WidePRIx64 L"I64x" 90 91 #if !defined(PRIuS) 92 #define PRIuS "Iu" 93 #endif 94 95 #endif 96 97 #endif // BASE_FORMAT_MACROS_H_ 98