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      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