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glibc/sysdeps/ieee754
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Tulio Magno Quites Machado Filho 51b34a9c47 Fix lgamma*, log10* and log2* results [BZ #21171] 
lgamma(-x) should return +Inf and raise divide-by-zero.
log10(+-0) and log2(+-0) should return -Inf and raise divide-by-zero.

Tested on powerpc, powerpc64, powerpc64le and x86_64.

	[BZ #21171]
	* sysdeps/ieee754/dbl-64/e_lgamma_r.c (__ieee754_lgamma_r): Return
	+Inf and raise divide-by-zero when x is negative.
	* sysdeps/ieee754/flt-32/e_lgammaf_r.c (__ieee754_lgammaf_r): Likewise.
	* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Likewise.

	* sysdeps/ieee754/dbl-64/e_log10.c (__ieee754_log10):  Return
	-Inf and raise divide-by-zero when x = +-0.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Likewise.
	* sysdeps/ieee754/flt-32/e_log10f.c (__ieee754_log10f):	Likewise.
	* sysdeps/ieee754/flt-32/e_log2f.c (__ieee754_log2f): Likewise.
	* sysdeps/ieee754/ldbl-128/e_log10l.c (__ieee754_log10l): Likewise.
	* sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_log10l.c (__ieee754_log10l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l): Likewise.
2017-02-17 09:07:57 -02:00
..
bits Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dbl-64 Fix lgamma*, log10* and log2* results [BZ #21171] 2017-02-17 09:07:57 -02:00
flt-32 Fix lgamma*, log10* and log2* results [BZ #21171] 2017-02-17 09:07:57 -02:00
ldbl-64-128 Move w_exp to libm-compat-call-auto 2017-02-08 17:44:20 -02:00
ldbl-96 Move w_exp to libm-compat-call-auto 2017-02-08 17:44:20 -02:00
ldbl-128 Fix lgamma*, log10* and log2* results [BZ #21171] 2017-02-17 09:07:57 -02:00
ldbl-128ibm Fix lgamma*, log10* and log2* results [BZ #21171] 2017-02-17 09:07:57 -02:00
ldbl-opt Move w_exp to libm-compat-call-auto 2017-02-08 17:44:20 -02:00
ieee754.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
k_standard.c Fix pow (qNaN, 0) result with -lieee (bug 20919), remove dead parts of wrappers. 2016-12-02 22:50:46 +00:00
k_standardf.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
k_standardl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile
s_lib_version.c
s_matherr.c
s_signgam.c Fix lgamma setting signgam for ISO C (bug 15421). 2015-11-20 22:49:59 +00:00