From: Daniel Baston <dbaston@gmail.com>
Date: Mon, 30 Nov 2015 01:16:03 +0000 (+0000)
Subject: Fix minimum bounding circle test for 32-bit build
X-Git-Tag: 2.3.0beta1~355
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e817920eeab67a1c94c797fc91096919e3d80f30;p=postgis

Fix minimum bounding circle test for 32-bit build

git-svn-id: http://svn.osgeo.org/postgis/trunk@14450 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/cunit/cu_minimum_bounding_circle.c b/liblwgeom/cunit/cu_minimum_bounding_circle.c
index 05771fe3b..277fd7bb8 100644
--- a/liblwgeom/cunit/cu_minimum_bounding_circle.c
+++ b/liblwgeom/cunit/cu_minimum_bounding_circle.c
@@ -27,7 +27,12 @@ static void mbc_test(LWGEOM* g)
 		p.x = p4.x;
 		p.y = p4.y;
 
-		CU_ASSERT_TRUE(distance2d_pt_pt(result->center, &p) <= result->radius);
+		/* We need to store the distance in a variable before the assert so that 
+		 * it is rounded from its 80-bit representation (on x86) down to 64 bits. 
+		 * */
+		double d = distance2d_pt_pt(result->center, &p);
+
+		CU_ASSERT_TRUE(d <= result->radius);
 	}
 
 	lwboundingcircle_destroy(result);