X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Fatan2f.c;h=96839cbad8794b11376bd6444c33bdf4351622e6;hb=74025c80ce1eb4cda110ab2e3ac11718d3c6f2ff;hp=4d78840be3ec31043dabe05d718a3ca25b36682a;hpb=b69f695acedd4ce2798ef9ea28d834ceccc789bd;p=musl

diff --git a/src/math/atan2f.c b/src/math/atan2f.c
index 4d78840b..96839cba 100644
--- a/src/math/atan2f.c
+++ b/src/math/atan2f.c
@@ -15,14 +15,13 @@
 
 #include "libm.h"
 
-static volatile float
+static const volatile float
 tiny = 1.0e-30;
 static const float
-zero = 0.0,
 pi_o_4 = 7.8539818525e-01, /* 0x3f490fdb */
 pi_o_2 = 1.5707963705e+00, /* 0x3fc90fdb */
 pi     = 3.1415927410e+00; /* 0x40490fdb */
-static volatile float
+static const volatile float
 pi_lo  = -8.7422776573e-08; /* 0xb3bbbd2e */
 
 float atan2f(float y, float x)
@@ -58,13 +57,13 @@ float atan2f(float y, float x)
 			switch (m) {
 			case 0: return  pi_o_4+tiny; /* atan(+INF,+INF) */
 			case 1: return -pi_o_4-tiny; /* atan(-INF,+INF) */
-			case 2: return (float)3.0*pi_o_4+tiny;  /*atan(+INF,-INF)*/
-			case 3: return (float)-3.0*pi_o_4-tiny; /*atan(-INF,-INF)*/
+			case 2: return 3.0f*pi_o_4+tiny;  /*atan(+INF,-INF)*/
+			case 3: return -3.0f*pi_o_4-tiny; /*atan(-INF,-INF)*/
 			}
 		} else {
 			switch (m) {
-			case 0: return  zero;    /* atan(+...,+INF) */
-			case 1: return -zero;    /* atan(-...,+INF) */
+			case 0: return  0.0f;    /* atan(+...,+INF) */
+			case 1: return -0.0f;    /* atan(-...,+INF) */
 			case 2: return  pi+tiny; /* atan(+...,-INF) */
 			case 3: return -pi-tiny; /* atan(-...,-INF) */
 			}
@@ -77,7 +76,7 @@ float atan2f(float y, float x)
 	/* compute y/x */
 	k = (iy-ix)>>23;
 	if (k > 26) {                  /* |y/x| >  2**26 */
-		z = pi_o_2+(float)0.5*pi_lo;
+		z = pi_o_2 + 0.5f*pi_lo;
 		m &= 1;
 	} else if (k < -26 && hx < 0)  /* 0 > |y|/x > -2**-26 */
 		z = 0.0;