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-rw-r--r--math/s_ctan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/math/s_ctan.c b/math/s_ctan.c
index 7ed6abd814..674c3b63b4 100644
--- a/math/s_ctan.c
+++ b/math/s_ctan.c
@@ -30,7 +30,7 @@ __ctan (__complex__ double x)
 
   if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
     {
-      if (__isinf_ns (__imag__ x))
+      if (isinf (__imag__ x))
 	{
 	  if (isfinite (__real__ x) && fabs (__real__ x) > 1.0)
 	    {
@@ -51,7 +51,7 @@ __ctan (__complex__ double x)
 	  __real__ res = __nan ("");
 	  __imag__ res = __nan ("");
 
-	  if (__isinf_ns (__real__ x))
+	  if (isinf (__real__ x))
 	    feraiseexcept (FE_INVALID);
 	}
     }