X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Filogbl.c;h=1512934f18c97df352ebb7106a22212bb7241246;hb=01739902843e93ec6e9bf8e17d32c8ddf73fad81;hp=ed9ddcbc42582ac0fb2c0ab5923a0bccb6ccd050;hpb=b69f695acedd4ce2798ef9ea28d834ceccc789bd;p=musl

diff --git a/src/math/ilogbl.c b/src/math/ilogbl.c
index ed9ddcbc..1512934f 100644
--- a/src/math/ilogbl.c
+++ b/src/math/ilogbl.c
@@ -14,15 +14,19 @@ int ilogbl(long double x)
 	int e = u.bits.exp;
 
 	if (!e) {
-		if (m == 0)
+		if (m == 0) {
+			FORCE_EVAL(0/0.0f);
 			return FP_ILOGB0;
+		}
 		/* subnormal x */
 		for (e = -0x3fff+1; m < (uint64_t)1<<63; e--, m<<=1);
 		return e;
 	}
-	if (e == 0x7fff)
+	if (e == 0x7fff) {
+		FORCE_EVAL(0/0.0f);
 		/* in ld80 msb is set in inf */
 		return m & (uint64_t)-1>>1 ? FP_ILOGBNAN : INT_MAX;
+	}
 	return e - 0x3fff;
 }
 #endif