From faa82f0a6004026c94a6415baf5e138b48dc1629 Mon Sep 17 00:00:00 2001
From: Loek Le Blansch <loek@pipeframe.xyz>
Date: Thu, 24 Oct 2024 18:32:55 +0200
Subject: implement weird dijkstra

---
 XY.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'XY.h')

diff --git a/XY.h b/XY.h
index 839e19f..8809104 100644
--- a/XY.h
+++ b/XY.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <functional>
+
 struct XY {
 	int x = 0;
 	int y = 0;
@@ -13,3 +15,7 @@ struct XY {
 	bool operator != (const XY& other) const;
 };
 
+template<> struct std::hash<XY> {
+	size_t operator () (const XY &) const;
+};
+
-- 
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