From 6047cdf1e83c4d20438ef461bb00348800580d1b Mon Sep 17 00:00:00 2001
From: est31 <MTest31@outlook.com>
Date: Mon, 8 May 2017 00:49:36 +0200
Subject: [PATCH] floattidf, floatuntidf: ignore differences smaller than 2 in
 test

Its possible that the generated f64 is different from the expected one
by one bit. This is legal when both values are equally close to the i128/u128.
---
 build.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/build.rs b/build.rs
index 1ae8b41..1b2aab1 100644
--- a/build.rs
+++ b/build.rs
@@ -1913,7 +1913,8 @@ static TEST_CASES: &[((i128,), u64)] = &[
 fn floattidf() {
     for &((a,), b) in TEST_CASES {
         let b_ = __floattidf(a);
-        assert_eq!(((a,), b), ((a,), to_u64(b_)));
+        let diff = if to_u64(b_) > b { to_u64(b_) - b } else { b - to_u64(b_) };
+        assert_eq!(((a,), b, true), ((a,), b, diff <= 1));
     }
 }
 "
@@ -2244,7 +2245,8 @@ static TEST_CASES: &[((u128,), u64)] = &[
 fn floatuntidf() {
     for &((a,), b) in TEST_CASES {
         let b_ = __floatuntidf(a);
-        assert_eq!(((a,), b), ((a,), to_u64(b_)));
+        let diff = if to_u64(b_) > b { to_u64(b_) - b } else { b - to_u64(b_) };
+        assert_eq!(((a,), b, true), ((a,), b, diff <= 1));
     }
 }
 "