diff options
| -rw-r--r-- | ChangeLog | 45 | ||||
| -rw-r--r-- | NEWS | 11 | ||||
| -rw-r--r-- | manual/arith.texi | 4 | ||||
| -rw-r--r-- | manual/lang.texi | 32 | ||||
| -rw-r--r-- | stdlib/Makefile | 3 | ||||
| -rw-r--r-- | stdlib/tst-width-stdint.c | 185 | ||||
| -rw-r--r-- | sysdeps/generic/stdint.h | 46 |
7 files changed, 322 insertions, 4 deletions
@@ -1,3 +1,48 @@ +2016-09-21 Joseph Myers <joseph@codesourcery.com> + + * sysdeps/generic/stdint.h: Define + __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include + <bits/libc-header-start.h> instead of including <features.h>. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT8_WIDTH): New macro. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT8_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST8_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST8_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST8_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST8_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST16_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST32_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST64_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INTPTR_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINTPTR_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (INTMAX_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINTMAX_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (PTRDIFF_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (SIG_ATOMIC_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (SIZE_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (WCHAR_WIDTH): Likewise. + [__GLIBC_USE (IEC_60559_BFP_EXT)] (WINT_WIDTH): Likewise. + * manual/arith.texi (Integers): Document these macros for types + specified by width properties. + * manual/lang.texi (Width of Type): Document these macros for + other standard typedefs. + * stdlib/tst-width-stdint.c: New file. + * stdlib/Makefile (tests): Add tst-width-stdint. + 2016-09-21 Florian Weimer <fweimer@redhat.com> [BZ #20016] @@ -38,7 +38,16 @@ Version 2.25 * Integer width macros from TS 18661-1:2014 are added to <limits.h>: CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, SHRT_WIDTH, USHRT_WIDTH, INT_WIDTH, - UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH. + UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH; and to + <stdint.h>: INT8_WIDTH, UINT8_WIDTH, INT16_WIDTH, UINT16_WIDTH, + INT32_WIDTH, UINT32_WIDTH, INT64_WIDTH, UINT64_WIDTH, INT_LEAST8_WIDTH, + UINT_LEAST8_WIDTH, INT_LEAST16_WIDTH, UINT_LEAST16_WIDTH, + INT_LEAST32_WIDTH, UINT_LEAST32_WIDTH, INT_LEAST64_WIDTH, + UINT_LEAST64_WIDTH, INT_FAST8_WIDTH, UINT_FAST8_WIDTH, INT_FAST16_WIDTH, + UINT_FAST16_WIDTH, INT_FAST32_WIDTH, UINT_FAST32_WIDTH, INT_FAST64_WIDTH, + UINT_FAST64_WIDTH, INTPTR_WIDTH, UINTPTR_WIDTH, INTMAX_WIDTH, + UINTMAX_WIDTH, PTRDIFF_WIDTH, SIG_ATOMIC_WIDTH, SIZE_WIDTH, WCHAR_WIDTH, + WINT_WIDTH. * The <sys/quota.h> header now includes the <linux/quota.h> header. Support for the Linux quota interface which predates kernel version 2.4.22 has diff --git a/manual/arith.texi b/manual/arith.texi index 23b93736ac..dc3c367d49 100644 --- a/manual/arith.texi +++ b/manual/arith.texi @@ -110,7 +110,9 @@ minimum possible values for each integer data type. The macro names follow these examples: @code{INT32_MAX}, @code{UINT8_MAX}, @code{INT_FAST32_MIN}, @code{INT_LEAST64_MIN}, @code{UINTMAX_MAX}, @code{INTMAX_MAX}, @code{INTMAX_MIN}. Note that there are no macros for -unsigned integer minima. These are always zero. +unsigned integer minima. These are always zero. Similiarly, there +are macros such as @code{INTMAX_WIDTH} for the width of these types. +Those macros for integer type widths come from TS 18661-1:2014. @cindex maximum possible integer @cindex minimum possible integer diff --git a/manual/lang.texi b/manual/lang.texi index 3705df0599..ae7d5be30e 100644 --- a/manual/lang.texi +++ b/manual/lang.texi @@ -703,6 +703,38 @@ int}, @code{long long int} and @code{unsigned long long int}, respectively. @end table +Further such macros are defined in @file{stdint.h}. Apart from those +for types specified by width (@pxref{Integers}), the following are +defined. + +@table @code +@comment stdint.h +@comment ISO +@item INTPTR_WIDTH +@comment stdint.h +@comment ISO +@itemx UINTPTR_WIDTH +@comment stdint.h +@comment ISO +@itemx PTRDIFF_WIDTH +@comment stdint.h +@comment ISO +@itemx SIG_ATOMIC_WIDTH +@comment stdint.h +@comment ISO +@itemx SIZE_WIDTH +@comment stdint.h +@comment ISO +@itemx WCHAR_WIDTH +@comment stdint.h +@comment ISO +@itemx WINT_WIDTH + +These are the widths of the types @code{intptr_t}, @code{uintptr_t}, +@code{ptrdiff_t}, @code{sig_atomic_t}, @code{size_t}, @code{wchar_t} +and @code{wint_t}, respectively. +@end table + @node Range of Type @subsection Range of an Integer Type @cindex integer type range diff --git a/stdlib/Makefile b/stdlib/Makefile index ccc9aaef33..de3ecbbaa0 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -77,7 +77,8 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \ tst-tininess tst-strtod-underflow tst-tls-atexit \ tst-setcontext3 tst-tls-atexit-nodelete \ tst-strtol-locale tst-strtod-nan-locale tst-strfmon_l \ - tst-quick_exit tst-thread-quick_exit tst-width + tst-quick_exit tst-thread-quick_exit tst-width \ + tst-width-stdint tests-static := tst-secure-getenv ifeq ($(have-cxx-thread_local),yes) CFLAGS-tst-quick_exit.o = -std=c++11 diff --git a/stdlib/tst-width-stdint.c b/stdlib/tst-width-stdint.c new file mode 100644 index 0000000000..29b8b931a3 --- /dev/null +++ b/stdlib/tst-width-stdint.c @@ -0,0 +1,185 @@ +/* Test integer width macros in <stdint.h>. + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <signal.h> +#include <stddef.h> +#include <stdint.h> +#include <stdio.h> +#include <wchar.h> + +#define CHECK_WIDTH(TYPE, MAX, WIDTH) \ + do \ + { \ + if ((MAX >> ((TYPE) -1 < 0 ? (WIDTH - 2) : (WIDTH - 1))) != 1) \ + { \ + puts ("bad width of " #TYPE); \ + result = 1; \ + } \ + else \ + puts ("width of " #TYPE " OK"); \ + } \ + while (0) + +static int +do_test (void) +{ + int result = 0; + +#ifndef INT8_WIDTH +# error "missing INT8_WIDTH" +#endif + CHECK_WIDTH (int8_t, INT8_MAX, INT8_WIDTH); +#ifndef INT16_WIDTH +# error "missing INT16_WIDTH" +#endif + CHECK_WIDTH (int16_t, INT16_MAX, INT16_WIDTH); +#ifndef INT32_WIDTH +# error "missing INT32_WIDTH" +#endif + CHECK_WIDTH (int32_t, INT32_MAX, INT32_WIDTH); +#ifndef INT64_WIDTH +# error "missing INT64_WIDTH" +#endif + CHECK_WIDTH (int64_t, INT64_MAX, INT64_WIDTH); +#ifndef UINT8_WIDTH +# error "missing UINT8_WIDTH" +#endif + CHECK_WIDTH (uint8_t, UINT8_MAX, UINT8_WIDTH); +#ifndef UINT16_WIDTH +# error "missing UINT16_WIDTH" +#endif + CHECK_WIDTH (uint16_t, UINT16_MAX, UINT16_WIDTH); +#ifndef UINT32_WIDTH +# error "missing UINT32_WIDTH" +#endif + CHECK_WIDTH (uint32_t, UINT32_MAX, UINT32_WIDTH); +#ifndef UINT64_WIDTH +# error "missing UINT64_WIDTH" +#endif + CHECK_WIDTH (uint64_t, UINT64_MAX, UINT64_WIDTH); + +#ifndef INT_LEAST8_WIDTH +# error "missing INT_LEAST8_WIDTH" +#endif + CHECK_WIDTH (int_least8_t, INT_LEAST8_MAX, INT_LEAST8_WIDTH); +#ifndef INT_LEAST16_WIDTH +# error "missing INT_LEAST16_WIDTH" +#endif + CHECK_WIDTH (int_least16_t, INT_LEAST16_MAX, INT_LEAST16_WIDTH); +#ifndef INT_LEAST32_WIDTH +# error "missing INT_LEAST32_WIDTH" +#endif + CHECK_WIDTH (int_least32_t, INT_LEAST32_MAX, INT_LEAST32_WIDTH); +#ifndef INT_LEAST64_WIDTH +# error "missing INT_LEAST64_WIDTH" +#endif + CHECK_WIDTH (int_least64_t, INT_LEAST64_MAX, INT_LEAST64_WIDTH); +#ifndef UINT_LEAST8_WIDTH +# error "missing UINT_LEAST8_WIDTH" +#endif + CHECK_WIDTH (uint_least8_t, UINT_LEAST8_MAX, UINT_LEAST8_WIDTH); +#ifndef UINT_LEAST16_WIDTH +# error "missing UINT_LEAST16_WIDTH" +#endif + CHECK_WIDTH (uint_least16_t, UINT_LEAST16_MAX, UINT_LEAST16_WIDTH); +#ifndef UINT_LEAST32_WIDTH +# error "missing UINT_LEAST32_WIDTH" +#endif + CHECK_WIDTH (uint_least32_t, UINT_LEAST32_MAX, UINT_LEAST32_WIDTH); +#ifndef UINT_LEAST64_WIDTH +# error "missing UINT_LEAST64_WIDTH" +#endif + CHECK_WIDTH (uint_least64_t, UINT_LEAST64_MAX, UINT_LEAST64_WIDTH); + +#ifndef INT_FAST8_WIDTH +# error "missing INT_FAST8_WIDTH" +#endif + CHECK_WIDTH (int_fast8_t, INT_FAST8_MAX, INT_FAST8_WIDTH); +#ifndef INT_FAST16_WIDTH +# error "missing INT_FAST16_WIDTH" +#endif + CHECK_WIDTH (int_fast16_t, INT_FAST16_MAX, INT_FAST16_WIDTH); +#ifndef INT_FAST32_WIDTH +# error "missing INT_FAST32_WIDTH" +#endif + CHECK_WIDTH (int_fast32_t, INT_FAST32_MAX, INT_FAST32_WIDTH); +#ifndef INT_FAST64_WIDTH +# error "missing INT_FAST64_WIDTH" +#endif + CHECK_WIDTH (int_fast64_t, INT_FAST64_MAX, INT_FAST64_WIDTH); +#ifndef UINT_FAST8_WIDTH +# error "missing UINT_FAST8_WIDTH" +#endif + CHECK_WIDTH (uint_fast8_t, UINT_FAST8_MAX, UINT_FAST8_WIDTH); +#ifndef UINT_FAST16_WIDTH +# error "missing UINT_FAST16_WIDTH" +#endif + CHECK_WIDTH (uint_fast16_t, UINT_FAST16_MAX, UINT_FAST16_WIDTH); +#ifndef UINT_FAST32_WIDTH +# error "missing UINT_FAST32_WIDTH" +#endif + CHECK_WIDTH (uint_fast32_t, UINT_FAST32_MAX, UINT_FAST32_WIDTH); +#ifndef UINT_FAST64_WIDTH +# error "missing UINT_FAST64_WIDTH" +#endif + CHECK_WIDTH (uint_fast64_t, UINT_FAST64_MAX, UINT_FAST64_WIDTH); + +#ifndef INTPTR_WIDTH +# error "missing INTPTR_WIDTH" +#endif + CHECK_WIDTH (intptr_t, INTPTR_MAX, INTPTR_WIDTH); +#ifndef UINTPTR_WIDTH +# error "missing UINTPTR_WIDTH" +#endif + CHECK_WIDTH (uintptr_t, UINTPTR_MAX, UINTPTR_WIDTH); + +#ifndef INTMAX_WIDTH +# error "missing INTMAX_WIDTH" +#endif + CHECK_WIDTH (intmax_t, INTMAX_MAX, INTMAX_WIDTH); +#ifndef UINTMAX_WIDTH +# error "missing UINTMAX_WIDTH" +#endif + CHECK_WIDTH (uintmax_t, UINTMAX_MAX, UINTMAX_WIDTH); + +#ifndef PTRDIFF_WIDTH +# error "missing PTRDIFF_WIDTH" +#endif + CHECK_WIDTH (ptrdiff_t, PTRDIFF_MAX, PTRDIFF_WIDTH); +#ifndef SIG_ATOMIC_WIDTH +# error "missing SIG_ATOMIC_WIDTH" +#endif + CHECK_WIDTH (sig_atomic_t, SIG_ATOMIC_MAX, SIG_ATOMIC_WIDTH); +#ifndef SIZE_WIDTH +# error "missing SIZE_WIDTH" +#endif + CHECK_WIDTH (size_t, SIZE_MAX, SIZE_WIDTH); +#ifndef WCHAR_WIDTH +# error "missing WCHAR_WIDTH" +#endif + CHECK_WIDTH (wchar_t, WCHAR_MAX, WCHAR_WIDTH); +#ifndef WINT_WIDTH +# error "missing WINT_WIDTH" +#endif + CHECK_WIDTH (wint_t, WINT_MAX, WINT_WIDTH); + + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/sysdeps/generic/stdint.h b/sysdeps/generic/stdint.h index 442762728b..5428dbc30d 100644 --- a/sysdeps/generic/stdint.h +++ b/sysdeps/generic/stdint.h @@ -22,7 +22,8 @@ #ifndef _STDINT_H #define _STDINT_H 1 -#include <features.h> +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> #include <bits/wchar.h> #include <bits/wordsize.h> @@ -307,4 +308,47 @@ typedef unsigned long long int uintmax_t; # define UINTMAX_C(c) c ## ULL # endif +#if __GLIBC_USE (IEC_60559_BFP_EXT) + +# define INT8_WIDTH 8 +# define UINT8_WIDTH 8 +# define INT16_WIDTH 16 +# define UINT16_WIDTH 16 +# define INT32_WIDTH 32 +# define UINT32_WIDTH 32 +# define INT64_WIDTH 64 +# define UINT64_WIDTH 64 + +# define INT_LEAST8_WIDTH 8 +# define UINT_LEAST8_WIDTH 8 +# define INT_LEAST16_WIDTH 16 +# define UINT_LEAST16_WIDTH 16 +# define INT_LEAST32_WIDTH 32 +# define UINT_LEAST32_WIDTH 32 +# define INT_LEAST64_WIDTH 64 +# define UINT_LEAST64_WIDTH 64 + +# define INT_FAST8_WIDTH 8 +# define UINT_FAST8_WIDTH 8 +# define INT_FAST16_WIDTH __WORDSIZE +# define UINT_FAST16_WIDTH __WORDSIZE +# define INT_FAST32_WIDTH __WORDSIZE +# define UINT_FAST32_WIDTH __WORDSIZE +# define INT_FAST64_WIDTH 64 +# define UINT_FAST64_WIDTH 64 + +# define INTPTR_WIDTH __WORDSIZE +# define UINTPTR_WIDTH __WORDSIZE + +# define INTMAX_WIDTH 64 +# define UINTMAX_WIDTH 64 + +# define PTRDIFF_WIDTH __WORDSIZE +# define SIG_ATOMIC_WIDTH 32 +# define SIZE_WIDTH __WORDSIZE +# define WCHAR_WIDTH 32 +# define WINT_WIDTH 32 + +#endif + #endif /* stdint.h */ |