code cleanup of named constants

[musl] / src / math / acoshf.c

diff --git a/src/math/acoshf.c b/src/math/acoshf.c
index 57ce5cb..0f7aae2 100644 (file)
--- a/src/math/acoshf.c
+++ b/src/math/acoshf.c
@@ -16,7 +16,6 @@
 #include "libm.h"
 
 static const float
-one = 1.0,
 ln2 = 6.9314718246e-01; /* 0x3f317218 */
 
 float acoshf(float x)
@@ -32,12 +31,12 @@ float acoshf(float x)
                        return x + x;
                return logf(x) + ln2;  /* acosh(huge)=log(2x) */
        } else if (hx == 0x3f800000) {
-               return 0.0;  /* acosh(1) = 0 */
+               return 0.0f;  /* acosh(1) = 0 */
        } else if (hx > 0x40000000) {  /* 2**28 > x > 2 */
                t = x*x;
-               return logf(2.0f*x - one/(x+sqrtf(t-one)));
+               return logf(2.0f*x - 1.0f/(x+sqrtf(t-1.0f)));
        } else {                /* 1 < x < 2 */
-               t = x-one;
+               t = x-1.0f;
                return log1pf(t + sqrtf(2.0f*t+t*t));
        }
 }