From 0945e8b031b7804feae301b1faf5014e7f6227f8 Mon Sep 17 00:00:00 2001
From: Ahmet Inan <xdsopl@googlemail.com>
Date: Fri, 16 Jan 2015 18:06:03 +0100
Subject: [PATCH] replaced if's with a simpler switch in radix2

---
 app/src/main/rs/radix2.rsh | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/app/src/main/rs/radix2.rsh b/app/src/main/rs/radix2.rsh
index f926002..87fe896 100644
--- a/app/src/main/rs/radix2.rsh
+++ b/app/src/main/rs/radix2.rsh
@@ -22,20 +22,20 @@ limitations under the License.
 
 static void radix2(complex_t *out, float *in, int N, int S, int L)
 {
-    if (1 == N) {
-        out[0] = complex(in[0], 0.0f);
-        return;
-    } else if (2 == N) {
-        out[0] = complex(in[0] + in[S], 0.0f);
-        out[1] = complex(in[0] - in[S], 0.0f);
-        return;
-    } else if (4 == N) {
-        complex_t w = radix2_z[1 << L];
-        out[0] = complex(in[0] + in[S] + in[2 * S] + in[3 * S], 0.0f);
-        out[1] = complex(in[0] - in[2 * S], 0.0f) + w * (in[S] - in[3 * S]);
-        out[2] = complex(in[0] - in[S] + in[2 * S] - in[3 * S], 0.0f);
-        out[3] = complex(in[0] - in[2 * S], 0.0f) + w * (in[3 * S] - in[S]);
-        return;
+    switch (N) {
+        case 1:
+            out[0] = complex(in[0], 0.0f);
+            return;
+        case 2:
+            out[0] = complex(in[0] + in[S], 0.0f);
+            out[1] = complex(in[0] - in[S], 0.0f);
+            return;
+        case 4:
+            out[0] = complex(in[0] + in[S] + in[2 * S] + in[3 * S], 0.0f);
+            out[1] = complex(in[0] - in[2 * S], 0.0f) + radix2_z[1 << L] * (in[S] - in[3 * S]);
+            out[2] = complex(in[0] - in[S] + in[2 * S] - in[3 * S], 0.0f);
+            out[3] = complex(in[0] - in[2 * S], 0.0f) + radix2_z[1 << L] * (in[3 * S] - in[S]);
+            return;
     }
     radix2(out, in, N / 2, 2 * S, L + 1);
     radix2(out + N / 2, in + S, N / 2, 2 * S, L + 1);