code cleanup of named constants

[musl] / src / math / atan2.c

diff --git a/src/math/atan2.c b/src/math/atan2.c
index d928f0e..143c383 100644 (file)
--- a/src/math/atan2.c
+++ b/src/math/atan2.c
@@ -42,7 +42,6 @@
 static const volatile double
 tiny  = 1.0e-300;
 static const double
-zero  = 0.0,
 pi_o_4 = 7.8539816339744827900E-01, /* 0x3FE921FB, 0x54442D18 */
 pi_o_2 = 1.5707963267948965580E+00, /* 0x3FF921FB, 0x54442D18 */
 pi     = 3.1415926535897931160E+00; /* 0x400921FB, 0x54442D18 */
@@ -89,8 +88,8 @@ double atan2(double y, double x)
                        }
                } else {
                        switch(m) {
-                       case 0: return  zero;    /* atan(+...,+INF) */
-                       case 1: return -zero;    /* atan(-...,+INF) */
+                       case 0: return  0.0;     /* atan(+...,+INF) */
+                       case 1: return -0.0;     /* atan(-...,+INF) */
                        case 2: return  pi+tiny; /* atan(+...,-INF) */
                        case 3: return -pi-tiny; /* atan(-...,-INF) */
                        }