Module Name: src
Committed By: maya
Date: Sat Dec 31 22:54:56 UTC 2016
Modified Files:
src/lib/libm/complex: csqrtf.c
Log Message:
similar to csqrt, spare ourselves a fabsf call. we already check sign
later on, use this to our advantage.
No functional change.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/lib/libm/complex/csqrtf.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libm/complex/csqrtf.c
diff -u src/lib/libm/complex/csqrtf.c:1.2 src/lib/libm/complex/csqrtf.c:1.3
--- src/lib/libm/complex/csqrtf.c:1.2 Sat Dec 31 20:01:15 2016
+++ src/lib/libm/complex/csqrtf.c Sat Dec 31 22:54:56 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: csqrtf.c,v 1.2 2016/12/31 20:01:15 maya Exp $ */
+/* $NetBSD: csqrtf.c,v 1.3 2016/12/31 22:54:56 maya Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
@@ -55,12 +55,13 @@ csqrtf(float complex z)
}
if (x == 0.0f) {
- r = fabsf(y);
- r = sqrtf(0.5f * r);
- if (y > 0)
+ if (y > 0) {
+ r = sqrtf(0.5f * y);
w = r + r * I;
- else
+ } else {
+ r = sqrtf(-0.5f * y);
w = r - r * I;
+ }
return w;
}
