From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Tue, 15 Feb 2022 08:12:52 +0000 (+1100)
Subject: Revert "work around a bug in GCC: It generates a call to "sqrtf" for "(float)sqrt... 
X-Git-Tag: 3.0.0~26^2~7
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7d1204261764ec2bbc4ff964f08c9727a46efb7f;p=graphviz

Revert "work around a bug in GCC: It generates a call to "sqrtf" for "(float)sqrt(d)""

This reverts commit 0dfd6ab3449455907a5a684fb54cb8b54c5befd5.

As of fe3f9411d2c59b463ab1b64eecfd19f2db55d2fc, Graphviz requires a C99
compiler. C99 guarantees `sqrtf` so even if the “bug” discussed in the original
commit still exists, generating a `sqrtf` call is fine on a C99 toolchain.
---

diff --git a/lib/neatogen/matrix_ops.c b/lib/neatogen/matrix_ops.c
index 0ad5357b2..85d8ab370 100644
--- a/lib/neatogen/matrix_ops.c
+++ b/lib/neatogen/matrix_ops.c
@@ -611,11 +611,8 @@ void invert_vec(int n, float *vec)
 void sqrt_vec(int n, float *vec)
 {
     int i;
-    double d;
     for (i = 0; i < n; i++) {
-	/* do this in two steps to avoid a bug in gcc-4.00 on AIX */
-	d = sqrt(vec[i]);
-	vec[i] = (float) d;
+	vec[i] = (float) sqrt(vec[i]);
     }
 }