1// Copyright 2016 the V8 project 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 V8_BASE_FORMAT_MACROS_H_
6#define V8_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 "src/base/build_config.h"
28
29#if defined(V8_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(V8_OS_POSIX) && !defined(__STDC_FORMAT_MACROS)
36#define __STDC_FORMAT_MACROS
37#endif
38
39#include <inttypes.h>
40
41#if defined(V8_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(V8_OS_MACOSX)
58#if defined(V8_HOST_ARCH_64_BIT)
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(V8_HOST_ARCH_64_BIT)
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(V8_OS_MACOSX)
80
81#else // V8_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 // V8_BASE_FORMAT_MACROS_H_
98