code cleanup of named constants

[musl] / src / math / atanhf.c

diff --git a/src/math/atanhf.c b/src/math/atanhf.c
index 9c65dc7..2be780b 100644 (file)
--- a/src/math/atanhf.c
+++ b/src/math/atanhf.c
@@ -15,8 +15,7 @@
 
 #include "libm.h"
 
-static const float one = 1.0, huge = 1e30;
-static const float zero = 0.0;
+static const float huge = 1e30;
 
 float atanhf(float x)
 {
@@ -28,15 +27,15 @@ float atanhf(float x)
        if (ix > 0x3f800000)                   /* |x| > 1 */
                return (x-x)/(x-x);
        if (ix == 0x3f800000)
-               return x/zero;
-       if (ix < 0x31800000 && huge+x > zero)  /* x < 2**-28 */
+               return x/0.0f;
+       if (ix < 0x31800000 && huge+x > 0.0f)  /* x < 2**-28 */
                return x;
        SET_FLOAT_WORD(x, ix);
        if (ix < 0x3f000000) {                 /* x < 0.5 */
                t = x+x;
-               t = 0.5f*log1pf(t + t*x/(one-x));
+               t = 0.5f*log1pf(t + t*x/(1.0f-x));
        } else
-               t = 0.5f*log1pf((x+x)/(one-x));
+               t = 0.5f*log1pf((x+x)/(1.0f-x));
        if (hx >= 0)
                return t;
        return -t;