From 2d97e1dee38857036aa15068dc70a2cb57e14381 Mon Sep 17 00:00:00 2001
From: vassvik <mvassvik@gmail.com>
Date: Thu, 12 Dec 2019 19:12:12 +0100
Subject: [PATCH] Fix NaN checks in core:math.classify

Currently the classify procedures checks for NaNs using the check `x != x`, which is always false for NaNs and therefore that case is never entered. Using `!(x == x)` will work on the other hand.
---
 core/math/math.odin | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/math/math.odin b/core/math/math.odin
index 583da00d0..4b011524d 100644
--- a/core/math/math.odin
+++ b/core/math/math.odin
@@ -469,7 +469,7 @@ classify_f32 :: proc(x: f32) -> Float_Class {
 			return .Neg_Inf;
 		}
 		return .Inf;
-	case x != x:
+	case !(x == x):
 		return .NaN;
 	}
 
@@ -493,7 +493,7 @@ classify_f64 :: proc(x: f64) -> Float_Class {
 			return .Neg_Inf;
 		}
 		return .Inf;
-	case x != x:
+	case !(x == x):
 		return .NaN;
 	}
 	u := transmute(u64)x;