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98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_FORMAT_MACROS_H_
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#define BASE_FORMAT_MACROS_H_
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// This file defines the format macros for some integer types.
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// To print a 64-bit value in a portable way:
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// int64_t value;
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// printf("xyz:%" PRId64, value);
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// The "d" in the macro corresponds to %d; you can also use PRIu64 etc.
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//
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// For wide strings, prepend "Wide" to the macro:
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// int64_t value;
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// StringPrintf(L"xyz: %" WidePRId64, value);
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//
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// To print a size_t value in a portable way:
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// size_t size;
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// printf("xyz: %" PRIuS, size);
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// The "u" in the macro corresponds to %u, and S is for "size".
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#include <stddef.h>
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#include <stdint.h>
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#include "build/build_config.h"
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#if defined(OS_POSIX) && (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && \
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!defined(PRId64)
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#error "inttypes.h has already been included before this header file, but "
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#error "without __STDC_FORMAT_MACROS defined."
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#endif
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#if defined(OS_POSIX) && !defined(__STDC_FORMAT_MACROS)
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#define __STDC_FORMAT_MACROS
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#endif
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#include <inttypes.h>
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#if defined(OS_POSIX)
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// GCC will concatenate wide and narrow strings correctly, so nothing needs to
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// be done here.
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#define WidePRId64 PRId64
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#define WidePRIu64 PRIu64
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#define WidePRIx64 PRIx64
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#if !defined(PRIuS)
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#define PRIuS "zu"
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#endif
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// The size of NSInteger and NSUInteger varies between 32-bit and 64-bit
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// architectures and Apple does not provides standard format macros and
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// recommends casting. This has many drawbacks, so instead define macros
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// for formatting those types.
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#if defined(OS_MACOSX)
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#if defined(ARCH_CPU_64_BITS)
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#if !defined(PRIdNS)
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#define PRIdNS "ld"
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#endif
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#if !defined(PRIuNS)
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#define PRIuNS "lu"
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#endif
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#if !defined(PRIxNS)
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#define PRIxNS "lx"
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#endif
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#else // defined(ARCH_CPU_64_BITS)
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#if !defined(PRIdNS)
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#define PRIdNS "d"
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#endif
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#if !defined(PRIuNS)
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#define PRIuNS "u"
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#endif
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#if !defined(PRIxNS)
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#define PRIxNS "x"
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#endif
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#endif
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#endif // defined(OS_MACOSX)
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#else // OS_WIN
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#if !defined(PRId64) || !defined(PRIu64) || !defined(PRIx64)
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#error "inttypes.h provided by win toolchain should define these."
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#endif
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#define WidePRId64 L"I64d"
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#define WidePRIu64 L"I64u"
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#define WidePRIx64 L"I64x"
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#if !defined(PRIuS)
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#define PRIuS "Iu"
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#endif
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#endif
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#endif // BASE_FORMAT_MACROS_H_
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