From aa8f20ac378e7aa8e3ed71864c5f546c2166c39d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 3 Jun 2016 14:40:50 +0200
Subject: Handle special path_map root ('/') on Win32

---
 butl/path-map | 34 +++++++++++++++-------------------
 1 file changed, 15 insertions(+), 19 deletions(-)

diff --git a/butl/path-map b/butl/path-map
index f55bf18..fc66002 100644
--- a/butl/path-map
+++ b/butl/path-map
@@ -39,34 +39,30 @@ namespace butl
     bool
     operator() (const key_type& x, const key_type& y) const
     {
-      const auto& xs (x.string ());
-      const auto& ys (y.string ());
+      const string_type& xs (x.string ());
+      const string_type& ys (y.string ());
 
-#ifdef _WIN32
       return base::compare (xs.c_str (),
-                            xs.size (),
+                            root (xs) ? 0 : xs.size (),
                             ys.c_str (),
-                            ys.size ()) < 0;
-#else
-      return base::compare (xs.c_str (),
-                            x.root () ? 0 : xs.size (),
-                            ys.c_str (),
-                            y.root () ? 0 : ys.size ()) < 0;
-#endif
+                            root (ys) ? 0 : ys.size ()) < 0;
     }
 
     bool
     prefix (const key_type& p, const key_type& k) const
     {
-      const auto& ps (p.string ());
-      const auto& ks (k.string ());
+      const string_type& ps (p.string ());
+      const string_type& ks (k.string ());
 
-#ifdef _WIN32
-      return base::prefix (ps, ks);
-#else
-      return base::prefix (p.root () ? string_type () : ps,
-                           k.root () ? string_type () : ks);
-#endif
+      return base::prefix (root (ps) ? string_type () : ps,
+                           root (ks) ? string_type () : ks);
+    }
+
+  protected:
+    static bool
+    root (const string_type& p)
+    {
+      return p.size () == 1 && key_type::traits::is_separator (p[0]);
     }
   };
 
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