Set errno for atan2 underflow (bug 16349).

[platform/upstream/linaro-glibc.git] / math / w_powf.c

diff --git a/math/w_powf.c b/math/w_powf.c
index c78e76f..fa9e007 100644 (file)
--- a/math/w_powf.c
+++ b/math/w_powf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
 
@@ -25,7 +25,7 @@ float
 __powf (float x, float y)
 {
   float z = __ieee754_powf (x, y);
-  if (__builtin_expect (!__finitef (z), 0))
+  if (__glibc_unlikely (!__finitef (z)))
     {
       if (_LIB_VERSION != _IEEE_)
        {