glibc

Tree: e68c8d2757

Joseph Myers a292f45acd Add <limits.h> integer width macros. TS 18661-1 defines macros for the width of integer types, intended for use with the fromfp functions to convert from floating-point types to integer types of any width, in any rounding mode and with control over whether "inexact" is raised. Such macros are, of course, more generally useful than just with those functions. Those macros are added to <limits.h> and <stdint.h>. This patch adds the <limits.h> macros to glibc's header, with the <stdint.h> ones intended to be added in a separate patch (which would add to the NEWS entry created by this patch). I've also added these macros to GCC's headers for GCC 7, but definitions in glibc's <limits.h> are still useful for older GCC, for non-GNU compilers and for when it's _GNU_SOURCE rather than __STDC_WANT_IEC_60559_BFP_EXT__ that implies the macros should be defined since the GCC header only considers __STDC_WANT_IEC_60559_BFP_EXT__ (and for glibc systems, the definitions in GCC's <stdint.h> will only be used with -ffreestanding). Tested for x86_64 and x86. * include/limits.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)] (CHAR_WIDTH): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (SCHAR_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (UCHAR_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (SHRT_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (USHRT_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (LONG_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ULONG_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (LLONG_WIDTH): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ULLONG_WIDTH): Likewise. * manual/lang.texi (Width of Type): Document these macros. * stdlib/tst-width.c: New file. * stdlib/Makefile (tests): Add tst-width.		10 years ago
..
examples	glob: Simplify the interface for the GLOB_ALTDIRFUNC callback gl_readdir	10 years ago
Makefile	Update copyright dates with scripts/update-copyrights.	10 years ago
argp.texi	manual/argp.texi (Specifying Argp Parsers): Fix typo.	11 years ago
arith.texi	Add femode_t functions.	10 years ago
charset.texi	manual: fix typos in character set handling	10 years ago
check-safety.sh	Make shebang interpreter directives consistent	10 years ago
conf.texi	* manual/conf.texi: Document MTASC-safety properties.	12 years ago
contrib.texi	manual: fix spelling typos	10 years ago
creature.texi	Support __STDC_WANT_IEC_60559_FUNCS_EXT__ feature test macro.	10 years ago
crypt.texi	manual: fix spelling typos	10 years ago
ctype.texi	manual: fix typos in the character handling chapter	10 years ago
debug.texi	* manual/debug.texi: Document MTASC-safety properties.	12 years ago
dir	..	21 years ago
errno.texi	manual: fix typos in error reporting	10 years ago
fdl-1.3.texi	BZ#13738: Switch manual to FDL 1.3.	14 years ago
filesys.texi	manual: fix spelling typos	10 years ago
freemanuals.texi	Update to canonical freemanuals.texi file.	13 years ago
getopt.texi	* manual/getopt.texi: Document MTASC-safety properties.	12 years ago
header.texi	Use Texinfo macros to refer to the GNU C Library within the manual.	14 years ago
install-plain.texi	BZ #15941: Fix INSTALL file regeneration failure with makeinfo 5.x	13 years ago
install.texi	2016-06-05 Paul Pluzhnikov <ppluzhnikov@google.com>	10 years ago
intro.texi	manual: fix typo in the introduction	10 years ago
io.texi	Clean up glibc manual references to "GNU system" (bug 6911).	14 years ago
ipc.texi	manual/ipc.texi: Fix AC-safety notes.	12 years ago
job.texi	ctermid: return string literal, document MT-Safety pitfall	12 years ago
lang.texi	Add <limits.h> integer width macros.	10 years ago
lgpl-2.1.texi	Use canonical FSF .texi files for LGPL and FDL texts.	15 years ago
libc-texinfo.sh	Make shebang interpreter directives consistent	10 years ago
libc.texinfo	Fix doc quoting problems with Texinfo 5	10 years ago
libcbook.texi	initial import	32 years ago
libdl.texi	* manual/libdl.texi: New.	12 years ago
libm-err-tab.pl	Add nextup and nextdown math functions	10 years ago
llio.texi	Fix exponents in manual.	11 years ago
locale.texi	manual: fix spelling typos	10 years ago
macros.texi	Fix exponents in manual.	11 years ago
maint.texi	Fix two spaces after sentence.	12 years ago
math.texi	Support __STDC_WANT_IEC_60559_FUNCS_EXT__ feature test macro.	10 years ago
memory.texi	manual: fix typos in the memory chapter	10 years ago
message.texi	manual: fix typos in the message chapter	10 years ago
nss.texi	manual: fix spelling typos	10 years ago
nsswitch.texi	update from main archive 960814	30 years ago
pattern.texi	manual: fix typos in the pattern chapter	10 years ago
pipe.texi	* manual/pipe.texi: Document MTASC-safety properties.	12 years ago
platform.texi	PowerPC: Extend Program Priority Register support	11 years ago
probes.texi	Fix two spaces after sentence.	12 years ago
process.texi	Remove union wait [BZ #19613]	10 years ago
resource.texi	Fix typo in manual.	12 years ago
search.texi	manual: fix typos in the search chapter	10 years ago
setjmp.texi	manual/setjmp.texi: Clarify setcontext and signal handlers text	12 years ago
signal.texi	Fix crossreference to nonexistent node BSD Handler	12 years ago
socket.texi	Fix two spaces after sentence.	12 years ago
startup.texi	Remove _BSD_SOURCE and _SVID_SOURCE.	12 years ago
stdio-fp.c	update from main archive 970225	30 years ago
stdio.texi	Split large string section; add truncation advice	10 years ago
string.texi	manual: fix spelling typos	10 years ago
summary.awk	Update copyright dates with scripts/update-copyrights.	10 years ago
sysinfo.texi	Make obsolete syscall wrappers into compat symbols (bug 18472).	10 years ago
syslog.texi	* manual/syslog.texi: Document MTASC-safety properties.	12 years ago
terminal.texi	* manual/terminal.texi: Document MTASC-safety properties.	12 years ago
texinfo.tex	Update miscellaneous files from upstream sources.	10 years ago
texis.awk	Correct close statement.	25 years ago
threads.texi	Remove CPU set size checking from affinity functions [BZ #19143]	11 years ago
time.texi	* manual/time.texi (TZ Variable): glibc no longer comes with tzdata.	11 years ago
tsort.awk	Make shebang interpreter directives consistent	10 years ago
users.texi	manual: cuserid is mtasurace if not passed a string	12 years ago
xtract-typefun.awk	Make shebang interpreter directives consistent	10 years ago