math cleanup: use 1.0f instead of (float)1.0

[musl] / src / math / expm1f.c

diff --git a/src/math/expm1f.c b/src/math/expm1f.c
index cfab697..a8b79e8 100644 (file)
--- a/src/math/expm1f.c
+++ b/src/math/expm1f.c
@@ -53,7 +53,7 @@ float expm1f(float x)
                }
                if (xsb != 0) {  /* x < -27*ln2 */
                        /* raise inexact */
-                       if (x+tiny < (float)0.0)
+                       if (x+tiny < 0.0f)
                                return tiny-one;  /* return -1 */
                }
        }
@@ -71,7 +71,7 @@ float expm1f(float x)
                                k = -1;
                        }
                } else {
-                       k  = invln2*x+((xsb==0)?(float)0.5:(float)-0.5);
+                       k  = invln2*x + (xsb==0 ? 0.5f : -0.5f);
                        t  = k;
                        hi = x - t*ln2_hi;      /* t*ln2_hi is exact here */
                        lo = t*ln2_lo;
@@ -85,27 +85,27 @@ float expm1f(float x)
                k = 0;
 
        /* x is now in primary range */
-       hfx = (float)0.5*x;
+       hfx = 0.5f*x;
        hxs = x*hfx;
        r1 = one+hxs*(Q1+hxs*Q2);
-       t  = (float)3.0 - r1*hfx;
-       e  = hxs*((r1-t)/((float)6.0 - x*t));
+       t  = 3.0f - r1*hfx;
+       e  = hxs*((r1-t)/(6.0f - x*t));
        if (k == 0)  /* c is 0 */
                return x - (x*e-hxs);
        SET_FLOAT_WORD(twopk, 0x3f800000+(k<<23));   /* 2^k */
        e  = x*(e-c) - c;
        e -= hxs;
        if (k == -1)
-               return (float)0.5*(x-e) - (float)0.5;
+               return 0.5f*(x-e) - 0.5f;
        if (k == 1) {
-               if (x < (float)-0.25)
-                       return -(float)2.0*(e-(x+(float)0.5));
-               return one+(float)2.0*(x-e);
+               if (x < -0.25f)
+                       return -2.0f*(e-(x+0.5f));
+               return one + 2.0f*(x-e);
        }
        if (k <= -2 || k > 56) {   /* suffice to return exp(x)-1 */
                y = one - (e - x);
                if (k == 128)
-                       y = y*2.0F*0x1p127F;
+                       y = y*2.0f*0x1p127f;
                else
                        y = y*twopk;
                return y - one;
@@ -116,7 +116,7 @@ float expm1f(float x)
                y = t - (e - x);
                y = y*twopk;
        } else {
-               SET_FLOAT_WORD(t, ((0x7f-k)<<23));  /* 2^-k */
+               SET_FLOAT_WORD(t, (0x7f-k)<<23);  /* 2^-k */
                y = x - (e + t);
                y += one;
                y = y*twopk;