X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Flog10l.c;h=c7aacf909a45156d1f60513f60ee237ad36e8272;hb=7acbbdfd5d6e264dcf8efa13188f0c8edabee047;hp=b954cc7773116f8c7ba192d595cde0aa103ff84c;hpb=9e2a895aaaa4a3985e94ae4f3e24c1af65f9bb34;p=musl

diff --git a/src/math/log10l.c b/src/math/log10l.c
index b954cc77..c7aacf90 100644
--- a/src/math/log10l.c
+++ b/src/math/log10l.c
@@ -117,16 +117,15 @@ static const long double S[4] = {
 
 long double log10l(long double x)
 {
-	long double y;
-	volatile long double z;
+	long double y, z;
 	int e;
 
 	if (isnan(x))
 		return x;
-	if(x <= 0.0L) {
-		if(x == 0.0L)
-			return -1.0L / (x - x);
-		return (x - x) / (x - x);
+	if(x <= 0.0) {
+		if(x == 0.0)
+			return -1.0 / (x*x);
+		return (x - x) / 0.0;
 	}
 	if (x == INFINITY)
 		return INFINITY;
@@ -142,12 +141,12 @@ long double log10l(long double x)
 	if (e > 2 || e < -2) {
 		if (x < SQRTH) {  /* 2(2x-1)/(2x+1) */
 			e -= 1;
-			z = x - 0.5L;
-			y = 0.5L * z + 0.5L;
+			z = x - 0.5;
+			y = 0.5 * z + 0.5;
 		} else {  /*  2 (x-1)/(x+1)   */
-			z = x - 0.5L;
-			z -= 0.5L;
-			y = 0.5L * x  + 0.5L;
+			z = x - 0.5;
+			z -= 0.5;
+			y = 0.5 * x  + 0.5;
 		}
 		x = z / y;
 		z = x*x;
@@ -158,13 +157,13 @@ long double log10l(long double x)
 	/* logarithm using log(1+x) = x - .5x**2 + x**3 P(x)/Q(x) */
 	if (x < SQRTH) {
 		e -= 1;
-		x = ldexpl(x, 1) - 1.0L; /*  2x - 1  */
+		x = 2.0*x - 1.0;
 	} else {
-		x = x - 1.0L;
+		x = x - 1.0;
 	}
 	z = x*x;
 	y = x * (z * __polevll(x, P, 6) / __p1evll(x, Q, 7));
-	y = y - ldexpl(z, -1);   /* -0.5x^2 + ... */
+	y = y - 0.5*z;
 
 done:
 	/* Multiply log of fraction by log10(e)