From eff15ef3f15d3fc5692b06c0669f1b758e8d744b Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sat, 26 Apr 2014 16:08:40 +0200
Subject: [PATCH] Fix what is looking like a missing cast in CMSIS - the cast
within the line would make only halfway sense if this was actually intended
as double precision operation
---
src/lib/mathlib/CMSIS/Include/arm_math.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/lib/mathlib/CMSIS/Include/arm_math.h b/src/lib/mathlib/CMSIS/Include/arm_math.h
index 6f66f9ee3e..61d3a3b61f 100644
--- a/src/lib/mathlib/CMSIS/Include/arm_math.h
+++ b/src/lib/mathlib/CMSIS/Include/arm_math.h
@@ -5193,7 +5193,7 @@ void arm_rfft_fast_f32(
*pIa = Ialpha;
/* Calculating pIb from Ialpha and Ibeta by equation pIb = -(1/2) * Ialpha + (sqrt(3)/2) * Ibeta */
- *pIb = -0.5 * Ialpha + (float32_t) 0.8660254039 *Ibeta;
+ *pIb = (float32_t)-0.5 * Ialpha + (float32_t) 0.8660254039 *Ibeta;
}
--
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