code cleanup of named constants

[musl] / src / math / log2f.c

diff --git a/src/math/log2f.c b/src/math/log2f.c
index c9b9282..e0d6a9e 100644 (file)
--- a/src/math/log2f.c
+++ b/src/math/log2f.c
@@ -21,8 +21,6 @@ two25   =  3.3554432000e+07, /* 0x4c000000 */
 ivln2hi =  1.4428710938e+00, /* 0x3fb8b000 */
 ivln2lo = -1.7605285393e-04; /* 0xb9389ad4 */
 
-static const float zero = 0.0;
-
 float log2f(float x)
 {
        float f,hfsq,hi,lo,r,y;
@@ -33,9 +31,9 @@ float log2f(float x)
        k = 0;
        if (hx < 0x00800000) {  /* x < 2**-126  */
                if ((hx&0x7fffffff) == 0)
-                       return -two25/zero;  /* log(+-0)=-inf */
+                       return -two25/0.0f;  /* log(+-0)=-inf */
                if (hx < 0)
-                       return (x-x)/zero;   /* log(-#) = NaN */
+                       return (x-x)/0.0f;   /* log(-#) = NaN */
                /* subnormal number, scale up x */
                k -= 25;
                x *= two25;
@@ -44,7 +42,7 @@ float log2f(float x)
        if (hx >= 0x7f800000)
                return x+x;
        if (hx == 0x3f800000)
-               return zero;  /* log(1) = +0 */
+               return 0.0f;  /* log(1) = +0 */
        k += (hx>>23) - 127;
        hx &= 0x007fffff;
        i = (hx+(0x4afb0d))&0x800000;