From 3053f55528dbecb08ddb55fa94546a98af06e3e1 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 19 Jan 2018 09:06:39 +0200
Subject: Reimplement prefix_map::find_sup() to iterate over key, not entries

---
 tests/prefix-map/driver.cxx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'tests')

diff --git a/tests/prefix-map/driver.cxx b/tests/prefix-map/driver.cxx
index 2fb8a99..70afc30 100644
--- a/tests/prefix-map/driver.cxx
+++ b/tests/prefix-map/driver.cxx
@@ -201,4 +201,16 @@ main ()
       assert (i != e && i->second == 7);
     }
   }
+
+  {
+    // Test the special empty prefix logic.
+    //
+    pm m ({{"", 1}});
+
+    auto e (m.end ());
+
+    assert (m.find_sup ("") != e);
+    assert (m.find_sup ("foo") != e);
+    assert (m.find_sup ("foo.bar") != e);
+  }
 }
-- 
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