diff options
author | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2014-01-03 17:51:28 +0000 |
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committer | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2014-01-03 17:51:28 +0000 |
commit | f71e9a28759c1f5d6e8dc0baced440e72507b433 (patch) | |
tree | d1ef7f1f84de67d0446b60c04f10a47c84ac1ddc /libc/sysdeps/ieee754/ldbl-96/s_erfl.c | |
parent | 036dfd44bcc8ed8e97dcd9c763f61d3b59796941 (diff) |
Merge changes between r24468 and r24941 from /fsf/trunk.
git-svn-id: svn://svn.eglibc.org/trunk@24942 7b3dc134-2b1b-0410-93df-9e9f96275f8d
Diffstat (limited to 'libc/sysdeps/ieee754/ldbl-96/s_erfl.c')
-rw-r--r-- | libc/sysdeps/ieee754/ldbl-96/s_erfl.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/libc/sysdeps/ieee754/ldbl-96/s_erfl.c b/libc/sysdeps/ieee754/ldbl-96/s_erfl.c index 17d227852..47e4b9e90 100644 --- a/libc/sysdeps/ieee754/ldbl-96/s_erfl.c +++ b/libc/sysdeps/ieee754/ldbl-96/s_erfl.c @@ -104,6 +104,7 @@ */ +#include <errno.h> #include <math.h> #include <math_private.h> @@ -422,14 +423,22 @@ __erfcl (long double x) r = __ieee754_expl (-z * z - 0.5625) * __ieee754_expl ((z - x) * (z + x) + R / S); if ((se & 0x8000) == 0) - return r / x; + { + long double ret = r / x; + if (ret == 0) + __set_errno (ERANGE); + return ret; + } else return two - r / x; } else { if ((se & 0x8000) == 0) - return tiny * tiny; + { + __set_errno (ERANGE); + return tiny * tiny; + } else return two - tiny; } |