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-rw-r--r--winsup/cygwin/math/tgammal.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/winsup/cygwin/math/tgammal.c b/winsup/cygwin/math/tgammal.c
index 99408eed7..25a37eaeb 100644
--- a/winsup/cygwin/math/tgammal.c
+++ b/winsup/cygwin/math/tgammal.c
@@ -285,6 +285,9 @@ long double __tgammal_r(long double x, int* sgngaml)
return (x);
#endif
#endif
+ if (x == 0.0L)
+ return copysignl(HUGE_VALL, x);
+
q = fabsl(x);
if (q > 13.0L)
@@ -299,8 +302,8 @@ long double __tgammal_r(long double x, int* sgngaml)
gsing:
_SET_ERRNO(EDOM);
mtherr("tgammal", SING);
-#ifdef INFINITIES
- return (INFINITYL);
+#ifdef NANS
+ return (NAN);
#else
return (*sgngaml * MAXNUML);
#endif