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-rw-r--r--sysdeps/libm-ieee754/s_ccosl.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_ccosl.c b/sysdeps/libm-ieee754/s_ccosl.c
index a41d48b970..fdcc7a63dd 100644
--- a/sysdeps/libm-ieee754/s_ccosl.c
+++ b/sysdeps/libm-ieee754/s_ccosl.c
@@ -19,6 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <complex.h>
+#include <fenv.h>
 #include <math.h>
 
 
@@ -33,16 +34,31 @@ __ccosl (__complex__ long double x)
 	{
 	  __real__ res = __nanl ("");
 	  __imag__ res = 0.0;
+
+#ifdef FE_INVALID
+	  if (__isinfl (__real__ x))
+	    feraiseexcept (FE_INVALID);
+#endif
 	}
       else if (__isinfl (__imag__ x))
 	{
 	  __real__ res = HUGE_VALL;
 	  __imag__ res = __nanl ("");
+
+#ifdef FE_INVALID
+	  if (__isinfl (__real__ x))
+	    feraiseexcept (FE_INVALID);
+#endif
 	}
       else
 	{
 	  __real__ res = __nanl ("");
 	  __imag__ res = __nanl ("");
+
+#ifdef FE_INVALID
+	  if (isfinite (__imag__ x))
+	    feraiseexcept (FE_INVALID);
+#endif
 	}
     }
   else