aboutsummaryrefslogtreecommitdiff
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.zip
glibc-dc30f461575342ffeb6c0f2d5931493c1c3a91c0.tar.gz
glibc-dc30f461575342ffeb6c0f2d5931493c1c3a91c0.tar.bz2
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 2be1718..ec5910e 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 f35ef41..3dffcad 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));