summary refs log tree commit diff
path: root/math
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1998-02-13 17:54:15 +0000
committerUlrich Drepper <drepper@redhat.com>1998-02-13 17:54:15 +0000
commitdc30f461575342ffeb6c0f2d5931493c1c3a91c0 (patch)
tree99243511beca706f0743fe2316854c5a30709f17 /math
parente15867921d8f3b75deb0d91628cf9a323709ea9f (diff)
downloadglibc-dc30f461575342ffeb6c0f2d5931493c1c3a91c0.tar.gz
glibc-dc30f461575342ffeb6c0f2d5931493c1c3a91c0.tar.xz
glibc-dc30f461575342ffeb6c0f2d5931493c1c3a91c0.zip
Update.
1998-02-13 17:39  Ulrich Drepper  <drepper@cygnus.com>

	* elf/Makefile: Don't use --version-script parameter to link ld.so
	unconditionally.

1998-01-02 04:19  Geoff Keating  <geoffk@ozemail.com.au>

	* math/Makefile: Add t_exp.
	* math/libm-test.c: Tighten accuracy bounds for exp(), correct
	constants.
	* math/test-reduce.c: Remove temporarily, it seems to be broken.
	* sysdeps/libm-ieee754/e_exp.c: Use accurate table method.
	* sysdeps/libm-ieee754/e_expf.c: Use table & double precision for
	better accuracy.
	* sysdeps/libm-ieee754/s_exp2.c: Use better polynomial; correct
	algorithm for very large/very small arguments.
	* sysdeps/libm-ieee754/s_exp2f.c: Use slightly better polynomial;
	correct algorithm for very large/very small arguments; adjust for
	new table.
	* sysdeps/libm-ieee754/t_exp.c: New file.
	* sysdeps/libm-ieee754/t_exp2f.h: Use table with smaller deltas.

	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Put 'strange test'
	back, with comment that explains what breaks when you remove it :-(.

	* localedata/xfrm-test.c: Avoid integer overflow.

	* stdlib/strfmon.c: char is unsigned, sometimes.

	*sysdeps/powerpc
	* sysdeps/powerpc/Makefile: Remove quad float support.
	* sysdeps/powerpc/q_*.c: Remove, they will become an add-on.
	* sysdeps/powerpc/quad_float.h: Likewise.
	* sysdeps/powerpc/test-arith.c: Likewise.
	* sysdeps/powerpc/test-arithf.c: Likewise.

	* sysdeps/generic/s_exp2.c: Remove, we have this implemented now.
	* sysdeps/generic/s_exp2f.c: Likewise.

	* sysdeps/powerpc/bits/mathinline.h: Use underscores around __asm__,
	don't try anything if _SOFT_FLOAT.

1997-12-31  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* locale/C-ctype.c (_nl_C_LC_CTYPE_class32): Undo last change.
	* locale/programs/ld-ctype.c (CHAR_CLASS32_TRANS): Likewise.
	* wctype/wctype.c: Likewise.
	* wctype/wctype.h (_ISwxxx): Renamed from _ISxxx, all uses
	changed.  They are incompatible with the _ISxxx values from
	<ctype.h> on little endian machines.
	(_ISwbit) [__BYTE_ORDER == __LITTLE_ENDIAN]: Correctly transform
	bit number.  This fixes the real bug and restores the integrity of
	the ctype locale file.
	* wctype/wcfuncs.c: Change all _ISxxx to _ISwxxx.
	* wctype/wcfuncs_l.c: Likewise.
	* wctype/wcextra.c: Likewise.
	* wctype/wctype_l.c [__BYTE_ORDER == __LITTLE_ENDIAN]: Use correct
	byte swapping.

1998-02-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.S (errno): Put it
	into .bss segment instead of .common, so that aliases on it work.

	* sysdeps/unix/sysv/linux/i386/sysdep.S (errno): Add .type and
	.size directives, put into .bss segment instead of initializing it
	to 4.

1998-02-12 08:00  H.J. Lu  <hjl@gnu.org>

	* libc.map (gnu_get_libc_release, gnu_get_libc_version): Added.

	* version.c (__gnu_get_libc_release, __gnu_get_libc_version): New
	functions.
	Make names without __ weak aliases.
	(__libc_release, __libc_version): Make them static.

	* include/gnu/libc-version.h: New file.
	* Makefile (headers): Add gnu/libc-version.h.

1998-02-13  Ulrich Drepper  <drepper@cygnus.com>

	* stdlib/stdlib.h (struct drand48_data): Leave X to user macros
	and use x for member name.
	Reported by Daniel Lyddy <daniell@cs.berkeley.edu>.

	* stdlib/drand48.c: Change according to member name change.
	* stdlib/drand48_r.c: Likewise.
	* stdlib/lcong48_r.c: Likewise.
	* stdlib/lrand48.c: Likewise.
	* stdlib/lrand48_r.c: Likewise.
	* stdlib/mrand48.c: Likewise.
	* stdlib/mrand48_r.c: Likewise.
	* stdlib/seed48.c: Likewise.
	* stdlib/seed48_r.c: Likewise.
	* stdlib/srand48_r.c: Likewise.

1998-02-11  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* nss/test-netdb.c: Add some more test cases.

1998-02-13 11:39  Ulrich Drepper  <drepper@cygnus.com>

	* libio/iovsscanf.c: Undo last change modifying errno.

1998-02-12  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdio-common/vfscanf.c: Never try to read another character
	after EOF.  Don't decrement read_in after EOF, it wasn't
	incremented in the first place.
	(NEXT_WIDE_CHAR): Set First, not first.

1998-02-06 07:48  H.J. Lu  <hjl@gnu.org>

	* db/Makefile ($(inst_libdir)/libndbm.a,
	$(inst_libdir)/libndbm.so): New targets.
	* db2/Makefile: Likewise.

1998-02-12 08:20  H.J. Lu  <hjl@gnu.org>

	* sysdeps/gnu/errlist.awk (sys_errlist, sys_nerr): Create weak
	aliases if HAVE_ELF or PIC or DO_VERSIONING is not defined.

1998-02-12  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/generic/_G_config.h: Define _G_wchar_t, for C++
	<streambuf.h>.
	* sysdeps/unix/sysv/linux/_G_config.h: Likewise.

1998-02-11  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/make-syscalls.sh: Fix sed pattern when dealing with
	versioned symbols.

1998-02-13 08:14  H.J. Lu  <hjl@gnu.org>

	* libc.map (_dl_global_scope, _dl_lookup_symbol_skip,
	_dl_lookup_versioned_symbol, _dl_lookup_versioned_symbol_skip):
	Added for libdl.so.







	* elf/rtld.map: New file.  Needed to define the GLIBC_2.*

	* manual/socket.texi (Host Address Functions): Clarify description
	* sysdeps/unix/sysv/linux/alpha/bits/time.h (struct timeval):
Diffstat (limited to 'math')
-rw-r--r--math/Makefile6
-rw-r--r--math/libm-test.c8
2 files changed, 8 insertions, 6 deletions
diff --git a/math/Makefile b/math/Makefile
index 2be1718d32..ec5910ee9b 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+# Copyright (C) 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
@@ -41,7 +41,7 @@ libm-map	:= libm.map
 libm-support = k_standard s_lib_version s_matherr s_signgam		\
 	       fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg		\
 	       ftestexcept fegetround fesetround fegetenv feholdexcpt	\
-	       fesetenv feupdateenv
+	       fesetenv feupdateenv t_exp
 libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod	\
 	     e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow	\
 	     e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r	\
@@ -78,7 +78,7 @@ distribute += $(long-c-yes:=.c)
 # Rules for the test suite.
 tests = test-float test-double $(test-longdouble-$(long-double-fcts)) \
 	test-ifloat test-idouble test-matherr test-fenv \
-	atest-exp atest-sincos atest-exp2 # test-reduce
+	atest-exp atest-sincos atest-exp2
 # We do the `long double' tests only if this data type is available and
 # distinct from `double'.
 test-longdouble-yes = test-ldouble test-ildoubl
diff --git a/math/libm-test.c b/math/libm-test.c
index f35ef41423..3dffcad6dc 100644
--- a/math/libm-test.c
+++ b/math/libm-test.c
@@ -138,6 +138,8 @@
 
 /* Various constants (we must supply them precalculated for accuracy).  */
 #define M_PI_6  .52359877559829887308L
+#define M_E2	7.389056098930650227230L
+#define M_E3	20.08553692318766774093L
 
 static int noErrors;   /* number of errors */
 static int noTests;    /* number of tests (without testing exceptions) */
@@ -1175,11 +1177,11 @@ exp_test (void)
   check_isinfp ("exp (+inf) == +inf", FUNC(exp) (plus_infty));
   check ("exp (-inf) == 0", FUNC(exp) (minus_infty), 0);
 #endif
-  check_eps ("exp (1) == e", FUNC(exp) (1), M_E, CHOOSE (4e-18L, 5e-16, 0));
+  check_eps ("exp (1) == e", FUNC(exp) (1), M_E, CHOOSE (4e-18L, 0, 0));
 
-  check_eps ("exp (2) == e^2", FUNC(exp) (2), M_E * M_E,
+  check_eps ("exp (2) == e^2", FUNC(exp) (2), M_E2,
 	     CHOOSE (1e-18, 0, 0));
-  check_eps ("exp (3) == e^3", FUNC(exp) (3), M_E * M_E * M_E,
+  check_eps ("exp (3) == e^3", FUNC(exp) (3), M_E3,
 	     CHOOSE (1.5e-17, 0, 0));
   check_eps ("exp (0.7) == 2.0137527074...", FUNC(exp) (0.7),
 	     2.0137527074704765216L, CHOOSE(9e-17L, 0, 0));