From b70c20d284eccb5bb9deced9710130778e1d6098 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Mon, 16 Mar 2020 14:13:25 +1100
Subject: [PATCH] region: support default construction of step iterator

This allows use in some std::algorithms that assume the iterator
conforms to LegacyIterator
---
 region.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/region.hpp b/region.hpp
index b9caf72b..ad17285b 100644
--- a/region.hpp
+++ b/region.hpp
@@ -146,6 +146,12 @@ namespace cruft {
                 hi (_hi)
             { ; }
 
+            iterator ()
+                : cursor {}
+                , lo {}
+                , hi {}
+            { ; }
+
 
             const point_t& operator* (void) const& { return cursor; }