From: ellson <devnull@localhost>
Date: Mon, 3 Jul 2006 12:05:11 +0000 (+0000)
Subject: work around a bug in GCC: It generates a call to "sqrtf" for "(float)sqrt(d)"
X-Git-Tag: LAST_LIBGRAPH~32^2~6195
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0dfd6ab3449455907a5a684fb54cb8b54c5befd5;p=graphviz

work around a bug in GCC: It generates a call to "sqrtf" for "(float)sqrt(d)"
but sqrtf doesn't exist in libm.a.
	reported by: Aaron Digulla <digulla@hepe.com>
---

diff --git a/lib/neatogen/matrix_ops.c b/lib/neatogen/matrix_ops.c
index 5c85f56ba..1fce7fb4c 100644
--- a/lib/neatogen/matrix_ops.c
+++ b/lib/neatogen/matrix_ops.c
@@ -726,8 +726,11 @@ void invert_vec(int n, float *vec)
 void sqrt_vec(int n, float *vec)
 {
     int i;
+    double d;
     for (i = 0; i < n; i++) {
-	vec[i] = (float) sqrt(vec[i]);
+	/* do this in two steps to avoid a bug in gcc-4.00 on AIX */
+	d = sqrt(vec[i]);
+	vec[i] = (float) d;
     }
 }