code cleanup of named constants

[musl] / src / math / acosh.c

diff --git a/src/math/acosh.c b/src/math/acosh.c
index a7c87e3..15f51c6 100644 (file)
--- a/src/math/acosh.c
+++ b/src/math/acosh.c
@@ -27,7 +27,6 @@
 #include "libm.h"
 
 static const double
-one = 1.0,
 ln2 = 6.93147180559945286227e-01; /* 0x3FE62E42, 0xFEFA39EF */
 
 double acosh(double x)
@@ -47,9 +46,9 @@ double acosh(double x)
                return 0.0;            /* acosh(1) = 0 */
        } else if (hx > 0x40000000) {  /* 2**28 > x > 2 */
                t = x*x;
-               return log(2.0*x - one/(x+sqrt(t-one)));
+               return log(2.0*x - 1.0/(x+sqrt(t-1.0)));
        } else {                /* 1 < x < 2 */
-               t = x-one;
+               t = x-1.0;
                return log1p(t + sqrt(2.0*t+t*t));
        }
 }