From: Michael Orlitzky <michael@orlitzky.com>
Date: Tue, 4 Oct 2011 03:53:42 +0000 (-0400)
Subject: Update the arbitrary instance for Cube to use smaller coordinates.
X-Git-Tag: 0.0.1~110
X-Git-Url: http://gitweb.michael.orlitzky.com/?p=spline3.git;a=commitdiff_plain;h=10a325117241837a7e91728fa4c696cab4d61d4c

Update the arbitrary instance for Cube to use smaller coordinates.
---

diff --git a/src/Cube.hs b/src/Cube.hs
index 6e67d4c..7fa4bfe 100644
--- a/src/Cube.hs
+++ b/src/Cube.hs
@@ -49,9 +49,13 @@ instance Arbitrary Cube where
       fv' <- arbitrary :: Gen FunctionValues
       (Positive tet_vol) <- arbitrary :: Gen (Positive Double)
       return (Cube h' i' j' k' fv' tet_vol)
-        where
-          coordmin = -268435456 -- -(2^29 / 2)
-          coordmax = 268435456  -- +(2^29 / 2)
+      where
+        -- The idea here is that, when cubed in the volume formula,
+        -- these numbers don't overflow 64 bits. This number is not
+        -- magic in any other sense than that it does not cause test
+        -- failures, while 2^23 does.
+        coordmax = 4194304 -- 2^22
+        coordmin = -coordmax
 
 
 instance Show Cube where