catan: remove no-op reduction mod pi and unused code

the output of atan2 is already in the correct range and does not need
further reduction. the MAXNUM macros were both unused and incorrect.

1 files changed, 1 insertions, 27 deletions

diff --git a/src/complex/catanf.c b/src/complex/catanf.c
index 1d569f2d..faaa907a 100644
--- a/src/complex/catanf.c
+++ b/src/complex/catanf.c
@@ -55,32 +55,6 @@
 
 #include "complex_impl.h"
 
-#define MAXNUMF 1.0e38F
-
-static const double DP1 = 3.140625;
-static const double DP2 = 9.67502593994140625E-4;
-static const double DP3 = 1.509957990978376432E-7;
-
-static const float float_pi = M_PI;
-
-static float _redupif(float xx)
-{
-	float x, t;
-	long i;
-
-	x = xx;
-	t = x/float_pi;
-	if (t >= 0.0f)
-		t += 0.5f;
-	else
-		t -= 0.5f;
-
-	i = t;  /* the multiple */
-	t = i;
-	t = ((x - t * DP1) - t * DP2) - t * DP3;
-	return t;
-}
-
 float complex catanf(float complex z)
 {
 	float complex w;
@@ -93,7 +67,7 @@ float complex catanf(float complex z)
 	a = 1.0f - x2 - (y * y);
 
 	t = 0.5f * atan2f(2.0f * x, a);
-	w = _redupif(t);
+	w = t;
 
 	t = y - 1.0f;
 	a = x2 + (t * t);