1 // Copyright 2009 The Chromium Authors 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 (BUILDFLAG(IS_POSIX) || BUILDFLAG(IS_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 (BUILDFLAG(IS_POSIX) || BUILDFLAG(IS_FUCHSIA)) && \ 36 !defined(__STDC_FORMAT_MACROS) 37 #define __STDC_FORMAT_MACROS 38 #endif 39 40 #include <inttypes.h> 41 42 #if !defined(PRIuS) 43 #define PRIuS "zu" 44 #endif 45 46 // The size of NSInteger and NSUInteger varies between 32-bit and 64-bit 47 // architectures and Apple does not provides standard format macros and 48 // recommends casting. This has many drawbacks, so instead define macros 49 // for formatting those types. 50 #if BUILDFLAG(IS_APPLE) 51 #if defined(ARCH_CPU_64_BITS) 52 #if !defined(PRIdNS) 53 #define PRIdNS "ld" 54 #endif 55 #if !defined(PRIuNS) 56 #define PRIuNS "lu" 57 #endif 58 #if !defined(PRIxNS) 59 #define PRIxNS "lx" 60 #endif 61 #else // defined(ARCH_CPU_64_BITS) 62 #if !defined(PRIdNS) 63 #define PRIdNS "d" 64 #endif 65 #if !defined(PRIuNS) 66 #define PRIuNS "u" 67 #endif 68 #if !defined(PRIxNS) 69 #define PRIxNS "x" 70 #endif 71 #endif 72 #endif // BUILDFLAG(IS_APPLE) 73 74 #endif // BASE_FORMAT_MACROS_H_ 75