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 #define PRIuS "zu" 46 47 #else // OS_WIN 48 49 #if !defined(PRId64) 50 #define PRId64 "I64d" 51 #endif 52 53 #if !defined(PRIu64) 54 #define PRIu64 "I64u" 55 #endif 56 57 #if !defined(PRIx64) 58 #define PRIx64 "I64x" 59 #endif 60 61 #define WidePRId64 L"I64d" 62 #define WidePRIu64 L"I64u" 63 #define WidePRIx64 L"I64x" 64 65 #define PRIuS "Iu" 66 67 #endif 68 69 #endif // !BASE_FORMAT_MACROS_H_ 70
