glibc/misc/efgcvt_r.c
Ulrich Drepper da2d1bc5ad Update.
1998-02-10 23:57  Ulrich Drepper  <drepper@happy.cygnus.com>

	* misc/tst-efgcvt.c: Add more tests.
	* misc/efgcvt_r.c: Correct result for above new tests.

1998-02-06 17:22  H.J. Lu  <hjl@gnu.org>

	* misc/efgcvt_r.c (fcvt_r, ecvt_r): Correctly handle
	NDIGIT <= 0.

1998-02-10 16:48  Philip Blundell  <pb@nexus.co.uk>

	* Makerules (install-no-libc.a-nosubdir): Don't install-bin (etc)
	if the programs weren't built.

1998-02-09 10:12  Philip Blundell  <pb@nexus.co.uk>

	* sysdeps/libm-ieee754/s_exp2.c (__ieee754_exp2): If we don't have
	FE_TONEAREST, soldier on regardless and do the best we can.
	* sysdeps/libm-ieee754/s_exp2f.c (__ieee754_exp2f): likewise.

1998-02-5 17:20  Philip Blundell  <pb@nexus.co.uk>

	* sysdeps/standalone/filedesc.h: Define __need_FOPEN_MAX, not
	_STDIO_H, before including <bits/stdio_lim.h>.

	* sysdeps/standalone/arm/bits/errno.h (EOVERFLOW): Added.

	* io/fts.c (fts_build): Don't try to use d_type if it doesn't
	exist.
	
	* sysdeps/arm/sys/ucontext.h: New file.

1998-02-04 10:11  Philip Blundell  <pb@nexus.co.uk>

	* manual/stdio.texi (Formatted Output Functions): Explicitly say
	that the return value from snprintf() does not count the
	terminating NUL as a character.
	
1998-02-10 16:57  Ulrich Drepper  <drepper@happy.cygnus.com>

	* manual/users.texi: Rewrite to describe correct POSIX behaviour,
	add description for sete[ug]id and general cleanup.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1998-01-04  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (parent-clean): Don't remove makefile fragments here.
	(postclean): New variable.
	(clean): Remove makefile fragments here.
	(realclean distclean): Likewise.  Pass sysdep-subdirs to sub-make.
	(generated): Add isomac and isomanc.out.
	* Makeconfig ($(common-objpfx)soversions.mk): Don't generate if
	avoid-generated is set.
	(postclean-generated): Add soversion.mk.
	($(common-objpfx)version.mk): Don't include if avoid-generated is
	set.
	* Makerules: Still need to include $(+sysdir_pfx)sysd-Makefile if
	avoid-generated is set.
	(common-generated): Add libc.so and libc.so$(libc.so-version).
	(generated): Add versioned libraries.
	(common-mostlyclean): Also remove %.so and %_pic.a.
	* csu/Makefile (generated): Add abi-tag.h.
	* db2/Makefile (extra-objs): Add getlong.o.
	* elf/Makefile (generated): Add ld.so, ldd and
	$(rtld-installed-name).
	(others): Add ldconfig here instead of ldconfig.o to extra-objs.
	* malloc/Makefile (generated): Add mtrace.
	* po/Makefile: Don't include version.mk, not needed any more.
	* sunrpc/Makefile (generated): Add rpc-proto.d and rpcgen.
	* sysdeps/unix/Makefile: Fix local_lim.h -> bits/local_lim.h,
	syscall.h -> sys/syscall.h.
	(common-generated): Add s-proto.d.
	(postclean-generated): Add sysd-syscalls.
	* localedata/Makefile (test-output): Add all output files.
	(generated): Add test-input and test-output.
	(generated-dirs): Add all the dirs.

1998-01-04  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (test-output, generated, generated-dirs): New
	variables.

1998-02-10 16:57  Ulrich Drepper  <drepper@happy.cygnus.com>

	* resolv/nss_dns/dns-host.c: Various code cleanups.
	
1998-02-09 08:10  H.J. Lu  <hjl@gnu.org>

	* resolv/gethnamaddr.c (getanswer): Fix the PTR/CNAME bug.
	From Philip Blundell <pb@nexus.co.uk>.
	* resolv/nss_dns/dns-host.c (getanswer_r): Ditto.

1998-02-08  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* libc.map: Add .rem, .div, .mul, .udiv, .umul, .urem for Sparc.
	Suggested by debian/sparc porters.

1998-02-07  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* misc/tst-efgcvt.c: Totally rewritten, added a lot of new tests
	for ecvt and fcvt.

1998-02-10 16:32  Ulrich Drepper  <drepper@happy.cygnus.com>

	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Use __xstat and
	__fxstat instead of stat and fstat.  Use namespace clean __stpcpy.

	* signal/signal.h: Always define sigset_t if __need_sigset_t is
	defined even if __USE_POSIX is not defined.

1998-02-02 20:51  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Correct last patch
	to support obsolete tty major numbers correctly.
	
1998-02-02 08:47  H.J. Lu  <hjl@gnu.org>

	* login/Makefile ($(inst_libexecdir)/pt_chown): Make the target
	directory first and ignore install error.

	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Substract
	128 from ptyno and fix a typo for the BSD style pty.

1998-02-01  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/Makefile ($(common-objpfx)s-proto.d): Depend on all
	syscalls.list's.

1998-02-01  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add
	getresuid and getresgid.

	* sysdeps/unix/sysv/linux/getresuid.c: New file.
	* sysdeps/unix/sysv/linux/getresgid.c: New file.

	* sysdeps/unix/sysv/linux/syscalls.list: Remove getres[ug]id, add
	s_getres[ug]id.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add getres[ug]id.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/syscalls.list: Likewise.

1998-02-02 08:11  H.J. Lu  <hjl@gnu.org>

	* nscd/grpcache.c: Include <stdlib.h>.

1998-02-01 16:01  H.J. Lu  <hjl@gnu.org>

	* stdlib/atoll.c: Fix comments.

	* sysdeps/posix/ttyname.c: Ignore stdin/stdout/stderr.
	* sysdeps/posix/ttyname_r.c: Ditto.

1998-02-03  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* io/sys/stat.h: Define S_IFLNK and S_IFSOCK if __USE_BSD or
	__USE_MISC, independent of __USE_UNIX98.

1998-02-10 19:18  Ulrich Drepper  <drepper@happy.cygnus.com>

	* sysdeps/unix/sysv/linux/i386/sigaction.c (__libc_missing_rt_sigs):
	Rename from __libc_have_rt_sigs and leave as COMMON data.
	
1998-02-04 11:58  Richard Henderson  <rth@twiddle.rth.home>

	* Makeconfig (CFLAGS-.os): Kill -fno-common.
	* Makerules (libc.so): Prelink libc_pic.a, allocating commons.

	* libc.map (GLIBC_2.1): Add Linux/Alpha tv64 symbols.
	* elf/rtld.map: New file.  Needed to define the GLIBC_2.* 
	version symbols.
	* include/libc-symbols.h (symbol_version, default_symbol_version):
	Provide asm versions and correct !DO_VERSIONING versions.
	* sysdeps/unix/make-syscalls.sh: Recognize version symbols in
	the weak symbol list.
	
	* sysdeps/unix/sysv/linux/sigaction.c (__libc_missing_rt_sigs):
	Rename from __libc_have_rt_sigs and leave as COMMON data.
	* sysdeps/unix/sysv/linux/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.

1998-02-04 16:41  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* sunrpc/Makefile: Correct dependencies of rpcgen.

1998-02-10 03:00  Ulrich Drepper  <drepper@happy.cygnus.com>

	* nscd/Makefile: Fix test for available linuxthreads add-on.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1998-02-05  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/unix/sysv/linux/syscalls.list: Fix typo in lchown.

1998-02-03  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/gnu/Makefile: Respect with-cvs variable.

	* manual/errno.texi (Error Messages): Correct description of
	strerror_r.  Pointed out by jonas@bagge.se.

1998-01-29  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/socket.texi (Host Address Functions): Clarify description 
	of inet_network.

1998-02-07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/grantpt.c (argv): Move const to toplevel.
	(grantpt): Delete superfluous cast.

1998-02-06  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile ($(inst_slibdir)/libc-$(version).so): Depend on
	elf/ldso_install instead of elf/subdir_install.
	(elf/ldso_install): New target.

	* elf/Makefile (ldso_install): New target.

1998-02-07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/powerpc/socket.S: Really do the change
	of 1998-01-06.

1998-02-07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/bits/string2.h (strcmp): Use __string2_1bptr_p only for
	constant expressions.

1998-02-07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* nss/test-netdb.c: Include <unistd.h> for gethostname and "nss.h"
	for __nss_configure_lookup.
	(output_hostent): Remove unused variable.

1998-02-07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/tst-inlcall.c: Fix format string.

1998-02-09  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* inet/netinet/in.h: Rename second parameter of bindresvport to
	avoid buggy gcc warning. [PR libc/412]
1998-02-10 20:06:30 +00:00

192 lines
4.1 KiB
C

/* Compatibility functions for floating point formatting, reentrant versions.
Copyright (C) 1995, 1996, 1997, 1998 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#include <sys/param.h>
#ifndef FLOAT_TYPE
#define FLOAT_TYPE double
#define FUNC_PREFIX
#define FLOAT_FMT_FLAG
#define FLOAT_NAME_EXT
#endif
#define APPEND(a, b) APPEND2 (a, b)
#define APPEND2(a, b) a##b
#define FLOOR APPEND(floor, FLOAT_NAME_EXT)
#define FABS APPEND(fabs, FLOAT_NAME_EXT)
#define LOG10 APPEND(log10, FLOAT_NAME_EXT)
#define EXP APPEND(exp, FLOAT_NAME_EXT)
int
APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len)
FLOAT_TYPE value;
int ndigit, *decpt, *sign;
char *buf;
size_t len;
{
int n, i;
if (buf == NULL)
{
__set_errno (EINVAL);
return -1;
}
if (isfinite (value))
{
*sign = signbit (value) != 0;
if (*sign)
value = -value;
if (ndigit < 0)
{
/* Rounding to the left of the decimal point. */
for (i = ndigit; i < 0; i++)
value *= 0.1;
ndigit = 0;
}
}
else
/* Value is Inf or NaN. */
*sign = 0;
n = snprintf (buf, len, "%.*" FLOAT_FMT_FLAG "f", ndigit, value);
if (n < 0)
return -1;
i = 0;
while (i < n && isdigit (buf[i]))
++i;
*decpt = i;
if (i == 0)
/* Value is Inf or NaN. */
return 0;
if (i < n)
{
do
++i;
while (i < n && !isdigit (buf[i]));
if (*decpt == 1 && buf[0] == '0')
{
/* We must not have leading zeroes. Strip them all out and
adjust *DECPT if necessary. */
--*decpt;
while (i < n && buf[i] == '0')
{
--*decpt;
++i;
}
}
memmove (&buf[MAX (*decpt, 0)], &buf[i], n - i);
buf[n - (i - MAX (*decpt, 0))] = '\0';
}
return 0;
}
#define weak_extern2(name) weak_extern (name)
weak_extern2 (FLOOR) weak_extern2 (LOG10) weak_extern2 (FABS)
weak_extern2 (EXP)
int
APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign, buf, len)
FLOAT_TYPE value;
int ndigit, *decpt, *sign;
char *buf;
size_t len;
{
int exponent = 0;
if (isfinite (value) && value != 0.0)
{
FLOAT_TYPE (*log10_function) (FLOAT_TYPE) = &LOG10;
if (log10_function)
{
/* Use the reasonable code if -lm is included. */
FLOAT_TYPE dexponent;
dexponent = FLOOR (LOG10 (FABS (value)));
value *= EXP (dexponent * -M_LN10);
exponent = (int) dexponent;
}
else
{
/* Slow code that doesn't require -lm functions. */
FLOAT_TYPE d;
if (value < 0.0)
d = -value;
else
d = value;
if (d < 1.0)
{
do
{
d *= 10.0;
--exponent;
}
while (d < 1.0);
}
else if (d >= 10.0)
{
do
{
d *= 0.1;
++exponent;
}
while (d >= 10.0);
}
if (value < 0.0)
value = -d;
else
value = d;
}
}
else if (value == 0.0)
/* SUSv2 leaves it unspecified whether *DECPT is 0 or 1 for 0.0.
This could be changed to -1 if we want to return 0. */
exponent = 0;
if (ndigit <= 0 && len > 0)
{
buf[0] = '\0';
*decpt = 1;
*sign = isfinite (value) ? signbit (value) != 0 : 0;
}
else
if (APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit - 1, decpt, sign,
buf, len))
return -1;
*decpt += exponent;
return 0;
}