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author | Joseph Myers <joseph@codesourcery.com> | 2015-02-11 23:17:25 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2015-02-11 23:17:25 +0000 |
commit | d435569cd626bccb9c27361202a279d0fd7fce88 (patch) | |
tree | d307669a2d90be6d52f58a9409f8f5f21575bbe1 /sysdeps/ieee754/ldbl-96/s_sincosl.c | |
parent | ef0ffcfd13fea7544c2d83d222963b0da4963734 (diff) | |
download | glibc-d435569cd626bccb9c27361202a279d0fd7fce88.tar.gz glibc-d435569cd626bccb9c27361202a279d0fd7fce88.tar.xz glibc-d435569cd626bccb9c27361202a279d0fd7fce88.zip |
Fix sincos errno setting (bug 15467).
This patch makes sincos set errno to EDOM when passed an infinity, similarly to sin and cos. Tested for x86_64, x86, powerpc and mips64. I don't know if the architecture-specific implementations for ia64 and m68k might need corresponding fixes. 2015-02-11 Joseph Myers <joseph@codesourcery.com> [BZ #15467] * sysdeps/ieee754/dbl-64/s_sincos.c: Include <errno.h>. (__sincos): Set errno to EDOM for infinite argument. * sysdeps/ieee754/flt-32/s_sincosf.c: Include <errno.h>. (SINCOSF_FUNC): Set errno to EDOM for infinite argument. * sysdeps/ieee754/ldbl-128/s_sincosl.c: Include <errno.h>. (__sincosl): Set errno to EDOM for infinite argument. * sysdeps/ieee754/ldbl-128ibm/s_sincosl.c: Include <errno.h>. (__sincosl): Set errno to EDOM for infinite argument. * sysdeps/ieee754/ldbl-96/s_sincosl.c: Include <errno.h>. (__sincosl): Set errno to EDOM for infinite argument. * math/libm-test.inc (sincos_test_data): Test errno setting.
Diffstat (limited to 'sysdeps/ieee754/ldbl-96/s_sincosl.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-96/s_sincosl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_sincosl.c b/sysdeps/ieee754/ldbl-96/s_sincosl.c index c7a161a770..37067bdaeb 100644 --- a/sysdeps/ieee754/ldbl-96/s_sincosl.c +++ b/sysdeps/ieee754/ldbl-96/s_sincosl.c @@ -17,6 +17,7 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#include <errno.h> #include <math.h> #include <math_private.h> @@ -41,6 +42,8 @@ __sincosl (long double x, long double *sinx, long double *cosx) { /* sin(Inf or NaN) is NaN */ *sinx = *cosx = x - x; + if (__isinf_nsl (x)) + __set_errno (EDOM); } else { |