X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Flog2l.c;h=722b451a026ae2ccd1b70381c4a87b7936ddb3c2;hb=5b5db97f7e80bde2678aed72336a28375e800354;hp=76a7aacd9d6e46a0f8f8ffbf8eb9fc51b6373d46;hpb=37aa7f7301d6526c14635375886acd881b471f6c;p=musl

diff --git a/src/math/log2l.c b/src/math/log2l.c
index 76a7aacd..722b451a 100644
--- a/src/math/log2l.c
+++ b/src/math/log2l.c
@@ -108,8 +108,7 @@ static const long double S[4] = {
 
 long double log2l(long double x)
 {
-	long double z;
-	long double y;
+	long double y, z;
 	int e;
 
 	if (isnan(x))
@@ -118,7 +117,7 @@ long double log2l(long double x)
 		return x;
 	if (x <= 0.0) {
 		if (x == 0.0)
-			return -1/(x+0); /* -inf with divbyzero */
+			return -1/(x*x); /* -inf with divbyzero */
 		return 0/0.0f; /* nan with invalid */
 	}
 
@@ -174,4 +173,10 @@ done:
 	z += e;
 	return z;
 }
+#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
+// TODO: broken implementation to make things compile
+long double log2l(long double x)
+{
+	return log2(x);
+}
 #endif