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-rw-r--r--math/s_ctanf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/math/s_ctanf.c b/math/s_ctanf.c
index 5f1adc8427..e0a6b8f07c 100644
--- a/math/s_ctanf.c
+++ b/math/s_ctanf.c
@@ -57,7 +57,7 @@ __ctanf (__complex__ float x)
       /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y))
 	 = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */
 
-      if (__glibc_likely (fpclassify(__real__ x) != FP_SUBNORMAL))
+      if (__glibc_likely (fabsf (__real__ x) > FLT_MIN))
 	{
 	  __sincosf (__real__ x, &sinrx, &cosrx);
 	}