(__ilogbl): Fix test for infinity.

diff --git a/sysdeps/ieee754/ldbl-96/s_ilogbl.c b/sysdeps/ieee754/ldbl-96/s_ilogbl.c
index 9688f5a..6b78101 100644 (file)
--- a/sysdeps/ieee754/ldbl-96/s_ilogbl.c
+++ b/sysdeps/ieee754/ldbl-96/s_ilogbl.c
@@ -53,9 +53,13 @@ static char rcsid[] = "$NetBSD: $";
            return ix;
        }
        else if (es<0x7fff) return es-0x3fff;
-       else if (FP_ILOGBNAN != INT_MAX && (hx|lx) == 0)
-           /* ISO C99 requires ilogbl(+-Inf) == INT_MAX.  */
-           return INT_MAX;
+       else if (FP_ILOGBNAN != INT_MAX)
+       {
+           GET_LDOUBLE_WORDS(es,hx,lx,x);
+           if ((hx & 0x7fffffff|lx) == 0)
+             /* ISO C99 requires ilogbl(+-Inf) == INT_MAX.  */
+             return INT_MAX;
+       }
        return FP_ILOGBNAN;
 }
 weak_alias (__ilogbl, ilogbl)