code cleanup of named constants

[musl] / src / math / log1pf.c

diff --git a/src/math/log1pf.c b/src/math/log1pf.c
index 5c71815..39832d2 100644 (file)
--- a/src/math/log1pf.c
+++ b/src/math/log1pf.c
@@ -27,8 +27,6 @@ Lp5 = 1.8183572590e-01, /* 3E3A3325 */
 Lp6 = 1.5313838422e-01, /* 3E1CD04F */
 Lp7 = 1.4798198640e-01; /* 3E178897 */
 
-static const float zero = 0.0;
-
 float log1pf(float x)
 {
        float hfsq,f,c,s,z,R,u;
@@ -40,15 +38,15 @@ float log1pf(float x)
        k = 1;
        if (hx < 0x3ed413d0) {  /* 1+x < sqrt(2)+  */
                if (ax >= 0x3f800000) {  /* x <= -1.0 */
-                       if (x == (float)-1.0)
-                               return -two25/zero; /* log1p(-1)=+inf */
+                       if (x == -1.0f)
+                               return -two25/0.0f; /* log1p(-1)=+inf */
                        return (x-x)/(x-x);         /* log1p(x<-1)=NaN */
                }
                if (ax < 0x38000000) {   /* |x| < 2**-15 */
                        /* raise inexact */
-                       if (two25 + x > zero && ax < 0x33800000)  /* |x| < 2**-24 */
+                       if (two25 + x > 0.0f && ax < 0x33800000)  /* |x| < 2**-24 */
                                return x;
-                       return x - x*x*(float)0.5;
+                       return x - x*x*0.5f;
                }
                if (hx > 0 || hx <= (int32_t)0xbe95f619) { /* sqrt(2)/2- <= 1+x < sqrt(2)+ */
                        k = 0;
@@ -60,11 +58,11 @@ float log1pf(float x)
                return x+x;
        if (k != 0) {
                if (hx < 0x5a000000) {
-                       STRICT_ASSIGN(float, u, (float)1.0 + x);
+                       STRICT_ASSIGN(float, u, 1.0f + x);
                        GET_FLOAT_WORD(hu, u);
                        k = (hu>>23) - 127;
                        /* correction term */
-                       c = k > 0 ? (float)1.0-(u-x) : x-(u-(float)1.0);
+                       c = k > 0 ? 1.0f-(u-x) : x-(u-1.0f);
                        c /= u;
                } else {
                        u = x;
@@ -87,22 +85,22 @@ float log1pf(float x)
                        SET_FLOAT_WORD(u, hu|0x3f000000);  /* normalize u/2 */
                        hu = (0x00800000-hu)>>2;
                }
-               f = u - (float)1.0;
+               f = u - 1.0f;
        }
-       hfsq = (float)0.5*f*f;
+       hfsq = 0.5f * f * f;
        if (hu == 0) {  /* |f| < 2**-20 */
-               if (f == zero) {
+               if (f == 0.0f) {
                        if (k == 0)
-                               return zero;
+                               return 0.0f;
                        c += k*ln2_lo;
                        return k*ln2_hi+c;
                }
-               R = hfsq*((float)1.0-(float)0.66666666666666666*f);
+               R = hfsq*(1.0f - 0.66666666666666666f * f);
                if (k == 0)
                        return f - R;
                return k*ln2_hi - ((R-(k*ln2_lo+c))-f);
        }
-       s = f/((float)2.0+f);
+       s = f/(2.0f + f);
        z = s*s;
        R = z*(Lp1+z*(Lp2+z*(Lp3+z*(Lp4+z*(Lp5+z*(Lp6+z*Lp7))))));
        if (k == 0)