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.
5 #ifndef BASE_FORMAT_MACROS_H_
6 #define BASE_FORMAT_MACROS_H_
8 // This file defines the format macros for some integer types.
10 // To print a 64-bit value in a portable way:
12 // printf("xyz:%" PRId64, value);
13 // The "d" in the macro corresponds to %d; you can also use PRIu64 etc.
15 // For wide strings, prepend "Wide" to the macro:
17 // StringPrintf(L"xyz: %" WidePRId64, value);
19 // To print a size_t value in a portable way:
21 // printf("xyz: %" PRIuS, size);
22 // The "u" in the macro corresponds to %u, and S is for "size".
27 #include "build/build_config.h"
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."
35 #if (defined(OS_POSIX) || defined(OS_FUCHSIA)) && !defined(__STDC_FORMAT_MACROS)
36 #define __STDC_FORMAT_MACROS
43 #if !defined(PRId64) || !defined(PRIu64) || !defined(PRIx64)
44 #error "inttypes.h provided by win toolchain should define these."
47 #define WidePRId64 L"I64d"
48 #define WidePRIu64 L"I64u"
49 #define WidePRIx64 L"I64x"
55 #elif defined(OS_POSIX) || defined(OS_FUCHSIA)
57 // GCC will concatenate wide and narrow strings correctly, so nothing needs to
59 #define WidePRId64 PRId64
60 #define WidePRIu64 PRIu64
61 #define WidePRIx64 PRIx64
67 #endif // defined(OS_WIN)
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)
84 #else // defined(ARCH_CPU_64_BITS)
95 #endif // defined(OS_MACOSX)
97 #endif // BASE_FORMAT_MACROS_H_