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2d88df5411
ISO C2x defines scanf %b for input of binary integers (with an optional 0b or 0B prefix). Implement such support, along with the corresponding SCNb* macros in <inttypes.h>. Unlike the support for binary integers with 0b or 0B prefix with scanf %i, this is supported in all versions of scanf (independent of the standards mode used for compilation), because there are no backwards compatibility concerns (%b wasn't previously a supported format) the way there were for %i. Tested for x86_64 and x86.
418 lines
11 KiB
C
418 lines
11 KiB
C
/* Copyright (C) 1997-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/*
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* ISO C99: 7.8 Format conversion of integer types <inttypes.h>
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*/
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#ifndef _INTTYPES_H
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#define _INTTYPES_H 1
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#include <features.h>
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/* Get the type definitions. */
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#include <stdint.h>
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/* Get a definition for wchar_t. But we must not define wchar_t itself. */
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#ifndef ____gwchar_t_defined
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# ifdef __cplusplus
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# define __gwchar_t wchar_t
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# elif defined __WCHAR_TYPE__
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typedef __WCHAR_TYPE__ __gwchar_t;
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# else
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# define __need_wchar_t
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# include <stddef.h>
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typedef wchar_t __gwchar_t;
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# endif
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# define ____gwchar_t_defined 1
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#endif
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# if __WORDSIZE == 64
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# define __PRI64_PREFIX "l"
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# define __PRIPTR_PREFIX "l"
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# else
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# define __PRI64_PREFIX "ll"
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# define __PRIPTR_PREFIX
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# endif
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/* Macros for printing format specifiers. */
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/* Decimal notation. */
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# define PRId8 "d"
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# define PRId16 "d"
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# define PRId32 "d"
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# define PRId64 __PRI64_PREFIX "d"
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# define PRIdLEAST8 "d"
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# define PRIdLEAST16 "d"
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# define PRIdLEAST32 "d"
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# define PRIdLEAST64 __PRI64_PREFIX "d"
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# define PRIdFAST8 "d"
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# define PRIdFAST16 __PRIPTR_PREFIX "d"
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# define PRIdFAST32 __PRIPTR_PREFIX "d"
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# define PRIdFAST64 __PRI64_PREFIX "d"
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# define PRIi8 "i"
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# define PRIi16 "i"
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# define PRIi32 "i"
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# define PRIi64 __PRI64_PREFIX "i"
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# define PRIiLEAST8 "i"
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# define PRIiLEAST16 "i"
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# define PRIiLEAST32 "i"
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# define PRIiLEAST64 __PRI64_PREFIX "i"
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# define PRIiFAST8 "i"
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# define PRIiFAST16 __PRIPTR_PREFIX "i"
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# define PRIiFAST32 __PRIPTR_PREFIX "i"
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# define PRIiFAST64 __PRI64_PREFIX "i"
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/* Octal notation. */
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# define PRIo8 "o"
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# define PRIo16 "o"
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# define PRIo32 "o"
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# define PRIo64 __PRI64_PREFIX "o"
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# define PRIoLEAST8 "o"
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# define PRIoLEAST16 "o"
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# define PRIoLEAST32 "o"
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# define PRIoLEAST64 __PRI64_PREFIX "o"
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# define PRIoFAST8 "o"
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# define PRIoFAST16 __PRIPTR_PREFIX "o"
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# define PRIoFAST32 __PRIPTR_PREFIX "o"
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# define PRIoFAST64 __PRI64_PREFIX "o"
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/* Unsigned integers. */
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# define PRIu8 "u"
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# define PRIu16 "u"
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# define PRIu32 "u"
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# define PRIu64 __PRI64_PREFIX "u"
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# define PRIuLEAST8 "u"
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# define PRIuLEAST16 "u"
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# define PRIuLEAST32 "u"
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# define PRIuLEAST64 __PRI64_PREFIX "u"
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# define PRIuFAST8 "u"
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# define PRIuFAST16 __PRIPTR_PREFIX "u"
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# define PRIuFAST32 __PRIPTR_PREFIX "u"
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# define PRIuFAST64 __PRI64_PREFIX "u"
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/* lowercase hexadecimal notation. */
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# define PRIx8 "x"
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# define PRIx16 "x"
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# define PRIx32 "x"
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# define PRIx64 __PRI64_PREFIX "x"
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# define PRIxLEAST8 "x"
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# define PRIxLEAST16 "x"
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# define PRIxLEAST32 "x"
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# define PRIxLEAST64 __PRI64_PREFIX "x"
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# define PRIxFAST8 "x"
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# define PRIxFAST16 __PRIPTR_PREFIX "x"
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# define PRIxFAST32 __PRIPTR_PREFIX "x"
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# define PRIxFAST64 __PRI64_PREFIX "x"
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/* UPPERCASE hexadecimal notation. */
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# define PRIX8 "X"
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# define PRIX16 "X"
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# define PRIX32 "X"
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# define PRIX64 __PRI64_PREFIX "X"
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# define PRIXLEAST8 "X"
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# define PRIXLEAST16 "X"
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# define PRIXLEAST32 "X"
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# define PRIXLEAST64 __PRI64_PREFIX "X"
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# define PRIXFAST8 "X"
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# define PRIXFAST16 __PRIPTR_PREFIX "X"
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# define PRIXFAST32 __PRIPTR_PREFIX "X"
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# define PRIXFAST64 __PRI64_PREFIX "X"
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/* Macros for printing `intmax_t' and `uintmax_t'. */
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# define PRIdMAX __PRI64_PREFIX "d"
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# define PRIiMAX __PRI64_PREFIX "i"
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# define PRIoMAX __PRI64_PREFIX "o"
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# define PRIuMAX __PRI64_PREFIX "u"
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# define PRIxMAX __PRI64_PREFIX "x"
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# define PRIXMAX __PRI64_PREFIX "X"
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/* Macros for printing `intptr_t' and `uintptr_t'. */
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# define PRIdPTR __PRIPTR_PREFIX "d"
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# define PRIiPTR __PRIPTR_PREFIX "i"
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# define PRIoPTR __PRIPTR_PREFIX "o"
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# define PRIuPTR __PRIPTR_PREFIX "u"
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# define PRIxPTR __PRIPTR_PREFIX "x"
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# define PRIXPTR __PRIPTR_PREFIX "X"
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/* Binary notation. */
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# if __GLIBC_USE (ISOC2X)
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# define PRIb8 "b"
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# define PRIb16 "b"
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# define PRIb32 "b"
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# define PRIb64 __PRI64_PREFIX "b"
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# define PRIbLEAST8 "b"
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# define PRIbLEAST16 "b"
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# define PRIbLEAST32 "b"
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# define PRIbLEAST64 __PRI64_PREFIX "b"
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# define PRIbFAST8 "b"
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# define PRIbFAST16 __PRIPTR_PREFIX "b"
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# define PRIbFAST32 __PRIPTR_PREFIX "b"
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# define PRIbFAST64 __PRI64_PREFIX "b"
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# define PRIbMAX __PRI64_PREFIX "b"
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# define PRIbPTR __PRIPTR_PREFIX "b"
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# define PRIB8 "B"
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# define PRIB16 "B"
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# define PRIB32 "B"
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# define PRIB64 __PRI64_PREFIX "B"
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# define PRIBLEAST8 "B"
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# define PRIBLEAST16 "B"
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# define PRIBLEAST32 "B"
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# define PRIBLEAST64 __PRI64_PREFIX "B"
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# define PRIBFAST8 "B"
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# define PRIBFAST16 __PRIPTR_PREFIX "B"
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# define PRIBFAST32 __PRIPTR_PREFIX "B"
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# define PRIBFAST64 __PRI64_PREFIX "B"
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# define PRIBMAX __PRI64_PREFIX "B"
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# define PRIBPTR __PRIPTR_PREFIX "B"
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# endif
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/* Macros for scanning format specifiers. */
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/* Signed decimal notation. */
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# define SCNd8 "hhd"
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# define SCNd16 "hd"
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# define SCNd32 "d"
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# define SCNd64 __PRI64_PREFIX "d"
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# define SCNdLEAST8 "hhd"
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# define SCNdLEAST16 "hd"
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# define SCNdLEAST32 "d"
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# define SCNdLEAST64 __PRI64_PREFIX "d"
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# define SCNdFAST8 "hhd"
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# define SCNdFAST16 __PRIPTR_PREFIX "d"
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# define SCNdFAST32 __PRIPTR_PREFIX "d"
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# define SCNdFAST64 __PRI64_PREFIX "d"
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/* Signed decimal notation. */
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# define SCNi8 "hhi"
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# define SCNi16 "hi"
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# define SCNi32 "i"
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# define SCNi64 __PRI64_PREFIX "i"
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# define SCNiLEAST8 "hhi"
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# define SCNiLEAST16 "hi"
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# define SCNiLEAST32 "i"
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# define SCNiLEAST64 __PRI64_PREFIX "i"
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# define SCNiFAST8 "hhi"
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# define SCNiFAST16 __PRIPTR_PREFIX "i"
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# define SCNiFAST32 __PRIPTR_PREFIX "i"
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# define SCNiFAST64 __PRI64_PREFIX "i"
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/* Unsigned decimal notation. */
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# define SCNu8 "hhu"
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# define SCNu16 "hu"
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# define SCNu32 "u"
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# define SCNu64 __PRI64_PREFIX "u"
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# define SCNuLEAST8 "hhu"
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# define SCNuLEAST16 "hu"
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# define SCNuLEAST32 "u"
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# define SCNuLEAST64 __PRI64_PREFIX "u"
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# define SCNuFAST8 "hhu"
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# define SCNuFAST16 __PRIPTR_PREFIX "u"
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# define SCNuFAST32 __PRIPTR_PREFIX "u"
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# define SCNuFAST64 __PRI64_PREFIX "u"
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/* Octal notation. */
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# define SCNo8 "hho"
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# define SCNo16 "ho"
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# define SCNo32 "o"
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# define SCNo64 __PRI64_PREFIX "o"
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# define SCNoLEAST8 "hho"
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# define SCNoLEAST16 "ho"
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# define SCNoLEAST32 "o"
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# define SCNoLEAST64 __PRI64_PREFIX "o"
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# define SCNoFAST8 "hho"
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# define SCNoFAST16 __PRIPTR_PREFIX "o"
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# define SCNoFAST32 __PRIPTR_PREFIX "o"
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# define SCNoFAST64 __PRI64_PREFIX "o"
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/* Hexadecimal notation. */
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# define SCNx8 "hhx"
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# define SCNx16 "hx"
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# define SCNx32 "x"
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# define SCNx64 __PRI64_PREFIX "x"
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# define SCNxLEAST8 "hhx"
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# define SCNxLEAST16 "hx"
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# define SCNxLEAST32 "x"
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# define SCNxLEAST64 __PRI64_PREFIX "x"
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# define SCNxFAST8 "hhx"
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# define SCNxFAST16 __PRIPTR_PREFIX "x"
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# define SCNxFAST32 __PRIPTR_PREFIX "x"
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# define SCNxFAST64 __PRI64_PREFIX "x"
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/* Macros for scanning `intmax_t' and `uintmax_t'. */
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# define SCNdMAX __PRI64_PREFIX "d"
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# define SCNiMAX __PRI64_PREFIX "i"
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# define SCNoMAX __PRI64_PREFIX "o"
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# define SCNuMAX __PRI64_PREFIX "u"
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# define SCNxMAX __PRI64_PREFIX "x"
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/* Macros for scanning `intptr_t' and `uintptr_t'. */
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# define SCNdPTR __PRIPTR_PREFIX "d"
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# define SCNiPTR __PRIPTR_PREFIX "i"
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# define SCNoPTR __PRIPTR_PREFIX "o"
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# define SCNuPTR __PRIPTR_PREFIX "u"
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# define SCNxPTR __PRIPTR_PREFIX "x"
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/* Binary notation. */
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# if __GLIBC_USE (ISOC2X)
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# define SCNb8 "hhb"
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# define SCNb16 "hb"
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# define SCNb32 "b"
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# define SCNb64 __PRI64_PREFIX "b"
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# define SCNbLEAST8 "hhb"
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# define SCNbLEAST16 "hb"
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# define SCNbLEAST32 "b"
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# define SCNbLEAST64 __PRI64_PREFIX "b"
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# define SCNbFAST8 "hhb"
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# define SCNbFAST16 __PRIPTR_PREFIX "b"
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# define SCNbFAST32 __PRIPTR_PREFIX "b"
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# define SCNbFAST64 __PRI64_PREFIX "b"
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# define SCNbMAX __PRI64_PREFIX "b"
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# define SCNbPTR __PRIPTR_PREFIX "b"
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# endif
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__BEGIN_DECLS
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#if __WORDSIZE == 64
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/* We have to define the `uintmax_t' type using `ldiv_t'. */
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typedef struct
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{
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long int quot; /* Quotient. */
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long int rem; /* Remainder. */
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} imaxdiv_t;
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#else
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/* We have to define the `uintmax_t' type using `lldiv_t'. */
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typedef struct
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{
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__extension__ long long int quot; /* Quotient. */
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__extension__ long long int rem; /* Remainder. */
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} imaxdiv_t;
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#endif
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/* Compute absolute value of N. */
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extern intmax_t imaxabs (intmax_t __n) __THROW __attribute__ ((__const__));
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/* Return the `imaxdiv_t' representation of the value of NUMER over DENOM. */
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extern imaxdiv_t imaxdiv (intmax_t __numer, intmax_t __denom)
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__THROW __attribute__ ((__const__));
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/* Like `strtol' but convert to `intmax_t'. */
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extern intmax_t strtoimax (const char *__restrict __nptr,
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char **__restrict __endptr, int __base) __THROW;
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/* Like `strtoul' but convert to `uintmax_t'. */
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extern uintmax_t strtoumax (const char *__restrict __nptr,
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char ** __restrict __endptr, int __base) __THROW;
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/* Like `wcstol' but convert to `intmax_t'. */
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extern intmax_t wcstoimax (const __gwchar_t *__restrict __nptr,
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__gwchar_t **__restrict __endptr, int __base)
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__THROW;
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/* Like `wcstoul' but convert to `uintmax_t'. */
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extern uintmax_t wcstoumax (const __gwchar_t *__restrict __nptr,
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__gwchar_t ** __restrict __endptr, int __base)
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__THROW;
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/* Versions of the above functions that handle '0b' and '0B' prefixes
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in base 0 or 2. */
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#if __GLIBC_USE (C2X_STRTOL)
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# ifdef __REDIRECT
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extern intmax_t __REDIRECT_NTH (strtoimax, (const char *__restrict __nptr,
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char **__restrict __endptr,
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int __base), __isoc23_strtoimax);
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extern uintmax_t __REDIRECT_NTH (strtoumax, (const char *__restrict __nptr,
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char **__restrict __endptr,
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int __base), __isoc23_strtoumax);
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extern intmax_t __REDIRECT_NTH (wcstoimax,
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(const __gwchar_t *__restrict __nptr,
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__gwchar_t **__restrict __endptr, int __base),
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__isoc23_wcstoimax);
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extern uintmax_t __REDIRECT_NTH (wcstoumax,
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(const __gwchar_t *__restrict __nptr,
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__gwchar_t **__restrict __endptr, int __base),
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__isoc23_wcstoumax);
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# else
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extern intmax_t __isoc23_strtoimax (const char *__restrict __nptr,
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char **__restrict __endptr, int __base)
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__THROW;
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extern uintmax_t __isoc23_strtoumax (const char *__restrict __nptr,
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char ** __restrict __endptr, int __base)
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__THROW;
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extern intmax_t __isoc23_wcstoimax (const __gwchar_t *__restrict __nptr,
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__gwchar_t **__restrict __endptr,
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int __base)
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__THROW;
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extern uintmax_t __isoc23_wcstoumax (const __gwchar_t *__restrict __nptr,
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__gwchar_t ** __restrict __endptr,
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int __base)
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__THROW;
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# define strtoimax __isoc23_strtoimax
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# define strtoumax __isoc23_strtoumax
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# define wcstoimax __isoc23_wcstoimax
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# define wcstoumax __isoc23_wcstoumax
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# endif
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#endif
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__END_DECLS
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#endif /* inttypes.h */
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