From d736ecf6e6172053c73c1357ee7b6db4e31a9099 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Mon, 1 Feb 2021 09:43:56 +1000
Subject: [PATCH] region: add a free function region-region `intersects`

---
 region.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/region.hpp b/region.hpp
index eec878de..8e318ba5 100644
--- a/region.hpp
+++ b/region.hpp
@@ -296,6 +296,16 @@ namespace cruft {
 
 
     ///////////////////////////////////////////////////////////////////////////
+    template <std::size_t S, typename T>
+    bool
+    intersects (
+        cruft::region<S,T> const &a,
+        cruft::region<S,T> const &b
+    ) {
+        return a.intersects (b);
+    }
+
+
     /// returns true if the supplied point lies within the supplied region
     /// inclusive of borders.
     template <size_t S, typename T>