From 6f12f2b7e8c58a0b14c6f1f3df2112b8860a6e4f Mon Sep 17 00:00:00 2001
From: David Shah <davey1576@gmail.com>
Date: Tue, 26 Jun 2018 15:06:59 +0200
Subject: Working on debugging the carry legaliser

Signed-off-by: David Shah <davey1576@gmail.com>
---
 common/util.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'common')

diff --git a/common/util.h b/common/util.h
index c888c8b8..a9ad2172 100644
--- a/common/util.h
+++ b/common/util.h
@@ -21,6 +21,7 @@
 #define UTIL_H
 
 #include <map>
+#include <set>
 #include <string>
 #include "nextpnr.h"
 
@@ -65,6 +66,15 @@ template <typename K, typename V> std::map<K, V *> sorted(const std::unordered_m
     return retVal;
 };
 
+// Wrap an unordered_set, and allow it to be iterated over sorted by key
+template <typename K> std::set<K> sorted(const std::unordered_set<K> &orig)
+{
+    std::set<K> retVal;
+    for (auto &item : orig)
+        retVal.insert(item);
+    return retVal;
+};
+
 NEXTPNR_NAMESPACE_END
 
 #endif
-- 
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