rework langinfo code for ABI compat and for use by time code

[musl] / src / math / log10f.c

diff --git a/src/math/log10f.c b/src/math/log10f.c
index 4175cce..e10749b 100644 (file)
--- a/src/math/log10f.c
+++ b/src/math/log10f.c
@@ -23,8 +23,6 @@ ivln10lo  = -3.1689971365e-05, /* 0xb804ead9 */
 log10_2hi =  3.0102920532e-01, /* 0x3e9a2080 */
 log10_2lo =  7.9034151668e-07; /* 0x355427db */
 
-static const float zero = 0.0;
-
 float log10f(float x)
 {
        float f,hfsq,hi,lo,r,y;
@@ -35,9 +33,9 @@ float log10f(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;
@@ -46,15 +44,15 @@ float log10f(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;
        SET_FLOAT_WORD(x, hx|(i^0x3f800000));  /* normalize x or x/2 */
        k += i>>23;
        y = (float)k;
-       f = x - (float)1.0;
-       hfsq = (float)0.5*f*f;
+       f = x - 1.0f;
+       hfsq = 0.5f * f * f;
        r = __log1pf(f);
 
 // FIXME