From afdfbf7c332421cef87cce8a57f5c387d1fd0d07 Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Sun, 20 Oct 2013 20:04:38 -0400
Subject: [PATCH] complex::isnan()

---
 toolbox/sane.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/toolbox/sane.cpp b/toolbox/sane.cpp
index 81faa91..1de42da 100644
--- a/toolbox/sane.cpp
+++ b/toolbox/sane.cpp
@@ -62,6 +62,11 @@ using std::to_string;
 		complex(uint64_t rhs) : _data(rhs)
 		{}
 
+		bool isnan() const
+		{
+			return _data == NaN;
+		}
+
 		complex &operator=(const complex &rhs)
 		{
 			_data = rhs._data;
@@ -156,6 +161,8 @@ using std::to_string;
 	// then override SANE::to_string.
 	std::string to_string(complex c)
 	{
+		if (c.isnan()) return std::string("nan");
+		
 		return std::to_string((int64_t)c);
 	}