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Diffstat (limited to 'sysdeps/ieee754/flt-32/s_expm1f.c')
-rw-r--r--sysdeps/ieee754/flt-32/s_expm1f.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/ieee754/flt-32/s_expm1f.c b/sysdeps/ieee754/flt-32/s_expm1f.c
index 1f032be25f..3f4536b906 100644
--- a/sysdeps/ieee754/flt-32/s_expm1f.c
+++ b/sysdeps/ieee754/flt-32/s_expm1f.c
@@ -17,6 +17,7 @@
 static char rcsid[] = "$NetBSD: s_expm1f.c,v 1.5 1995/05/10 20:47:11 jtc Exp $";
 #endif
 
+#include <errno.h>
 #include "math.h"
 #include "math_private.h"
 
@@ -63,7 +64,10 @@ Q5  =  -2.0109921195e-07; /* 0xb457edbb */
 		    return x+x; 	 /* NaN */
 		if(hx==0x7f800000)
 		    return (xsb==0)? x:-1.0;/* exp(+-inf)={inf,-1} */
-	        if(x > o_threshold) return huge*huge; /* overflow */
+	        if(x > o_threshold) {
+		  __set_errno (ERANGE);
+		  return huge*huge; /* overflow */
+		}
 	    }
 	    if(xsb!=0) { /* x < -27*ln2, return -1.0 with inexact */
 		if(x+tiny<(float)0.0)	/* raise inexact */