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a1a22f23e5
On 64-bit Android, the inttypes.h macros for [u]int_fastN_t types (e.g. int_fast16_t) use "d", "u", etc. as the format specifier, but the types themselves are defined as `long`, `unsigned long`, etc. This patch redefines the macros as `PRId64`, `PRIu64`, etc. to provide correct behavior.
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Implements the C99 <inttypes.h> interface. */
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#ifndef mozilla_IntegerPrintfMacros_h_
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#define mozilla_IntegerPrintfMacros_h_
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/*
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* These macros should not be used with the NSPR printf-like functions or their
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* users. If you need to use NSPR's facilities, see the comment on
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* supported formats at the top of nsprpub/pr/include/prprf.h.
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*/
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/*
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* scanf is a footgun: if the input number exceeds the bounds of the target
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* type, behavior is undefined (in the compiler sense: that is, this code
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* could overwrite your hard drive with zeroes):
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*
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* uint8_t u;
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* sscanf("256", "%" SCNu8, &u); // BAD
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*
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* For this reason, *never* use the SCN* macros provided by this header!
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*/
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#include <inttypes.h>
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/*
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* Fix up Android's broken [u]intptr_t inttype macros. Android's PRI*PTR
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* macros are defined as "ld", but sizeof(long) is 8 and sizeof(intptr_t)
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* is 4 on 32-bit Android. TestTypeTraits.cpp asserts that these new macro
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* definitions match the actual type sizes seen at compile time.
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*/
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#if defined(ANDROID) && !defined(__LP64__)
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# undef PRIdPTR /* intptr_t */
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# define PRIdPTR "d" /* intptr_t */
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# undef PRIiPTR /* intptr_t */
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# define PRIiPTR "i" /* intptr_t */
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# undef PRIoPTR /* uintptr_t */
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# define PRIoPTR "o" /* uintptr_t */
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# undef PRIuPTR /* uintptr_t */
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# define PRIuPTR "u" /* uintptr_t */
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# undef PRIxPTR /* uintptr_t */
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# define PRIxPTR "x" /* uintptr_t */
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# undef PRIXPTR /* uintptr_t */
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# define PRIXPTR "X" /* uintptr_t */
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#endif
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/*
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* Fix up Android's broken macros for [u]int_fastN_t. On ARM64, Android's
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* PRI*FAST16/32 macros are defined as "d", but the types themselves are defined
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* as long and unsigned long.
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*/
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#if defined(ANDROID) && defined(__LP64__)
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# undef PRIdFAST16 /* int_fast16_t */
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# define PRIdFAST16 PRId64 /* int_fast16_t */
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# undef PRIiFAST16 /* int_fast16_t */
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# define PRIiFAST16 PRIi64 /* int_fast16_t */
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# undef PRIoFAST16 /* uint_fast16_t */
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# define PRIoFAST16 PRIo64 /* uint_fast16_t */
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# undef PRIuFAST16 /* uint_fast16_t */
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# define PRIuFAST16 PRIu64 /* uint_fast16_t */
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# undef PRIxFAST16 /* uint_fast16_t */
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# define PRIxFAST16 PRIx64 /* uint_fast16_t */
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# undef PRIXFAST16 /* uint_fast16_t */
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# define PRIXFAST16 PRIX64 /* uint_fast16_t */
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# undef PRIdFAST32 /* int_fast32_t */
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# define PRIdFAST32 PRId64 /* int_fast32_t */
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# undef PRIiFAST32 /* int_fast32_t */
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# define PRIiFAST32 PRIi64 /* int_fast32_t */
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# undef PRIoFAST32 /* uint_fast32_t */
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# define PRIoFAST32 PRIo64 /* uint_fast32_t */
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# undef PRIuFAST32 /* uint_fast32_t */
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# define PRIuFAST32 PRIu64 /* uint_fast32_t */
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# undef PRIxFAST32 /* uint_fast32_t */
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# define PRIxFAST32 PRIx64 /* uint_fast32_t */
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# undef PRIXFAST32 /* uint_fast32_t */
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# define PRIXFAST32 PRIX64 /* uint_fast32_t */
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#endif
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#endif /* mozilla_IntegerPrintfMacros_h_ */
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