From 8cf26abf24f923e2ff19794e56f95a1d7ceb89e4 Mon Sep 17 00:00:00 2001
From: Scott Wolchok <swolchok@fb.com>
Date: Fri, 18 Apr 2014 13:41:14 -0700
Subject: [PATCH] Use isnan(3) to check for NaN

---
 src/Layout.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Layout.c b/src/Layout.c
index 5f496c97..82a9060c 100644
--- a/src/Layout.c
+++ b/src/Layout.c
@@ -125,7 +125,7 @@ void print_number_0(const char *str, float number) {
   }
 }
 void print_number_nan(const char *str, float number) {
-  if (number == number) {
+  if (!isnan(number)) {
     printf("%s: %g, ", str, number);
   }
 }
@@ -240,7 +240,7 @@ int dim[2] = {
 
 
 bool isUndefined(float value) {
-  return value != value; // NaN check
+  return isnan(value);
 }
 
 float getMargin(css_node_t *node, int location) {