X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Facoshf.c;h=0f7aae2abce9ddd299599c0019ccec876cbd81db;hb=9f58d06007818c43b9504e959ef81ab5f113b374;hp=30a3a943142fcbcfc29cc7315ab2a890072c6460;hpb=b69f695acedd4ce2798ef9ea28d834ceccc789bd;p=musl

diff --git a/src/math/acoshf.c b/src/math/acoshf.c
index 30a3a943..0f7aae2a 100644
--- a/src/math/acoshf.c
+++ b/src/math/acoshf.c
@@ -16,7 +16,6 @@
 #include "libm.h"
 
 static const float
-one = 1.0,
 ln2 = 6.9314718246e-01; /* 0x3f317218 */
 
 float acoshf(float x)
@@ -32,12 +31,12 @@ float acoshf(float x)
 			return x + x;
 		return logf(x) + ln2;  /* acosh(huge)=log(2x) */
 	} else if (hx == 0x3f800000) {
-		return 0.0;  /* acosh(1) = 0 */
+		return 0.0f;  /* acosh(1) = 0 */
 	} else if (hx > 0x40000000) {  /* 2**28 > x > 2 */
 		t = x*x;
-		return logf((float)2.0*x - one/(x+sqrtf(t-one)));
+		return logf(2.0f*x - 1.0f/(x+sqrtf(t-1.0f)));
 	} else {                /* 1 < x < 2 */
-		t = x-one;
-		return log1pf(t + sqrtf((float)2.0*t+t*t));
+		t = x-1.0f;
+		return log1pf(t + sqrtf(2.0f*t+t*t));
 	}
 }