From 86e1ddeacd908678348ff9783263fce47dc20179 Mon Sep 17 00:00:00 2001
From: Beman Dawes <bdawes@acm.org>
Date: Mon, 12 Jan 2009 17:02:20 +0000
Subject: [PATCH] Filesystem: add specializations to eliminate warnings, thus
 fixing #2543

[SVN r50556]
---
 include/boost/filesystem/path.hpp | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/include/boost/filesystem/path.hpp b/include/boost/filesystem/path.hpp
index 13b1923..b3e4158 100644
--- a/include/boost/filesystem/path.hpp
+++ b/include/boost/filesystem/path.hpp
@@ -97,8 +97,9 @@ namespace boost
       { BOOST_STATIC_CONSTANT( bool, value = true ); };
 # endif
 
-    // these only have to be specialized if Path::string_type::value_type
-    // is not convertible from char
+    // These only have to be specialized if Path::string_type::value_type
+    // is not convertible from char, although specializations may eliminate
+    // compiler warnings. See ticket 2543.
     template<class Path> struct slash
       { BOOST_STATIC_CONSTANT( char, value = '/' ); };
 
@@ -108,9 +109,22 @@ namespace boost
     template<class Path> struct colon
       { BOOST_STATIC_CONSTANT( char, value = ':' ); };
 
+# ifndef BOOST_FILESYSTEM_NARROW_ONLY
+    template<> struct slash<wpath>
+      { BOOST_STATIC_CONSTANT( wchar_t, value = L'/' ); };
+    template<> struct dot<wpath>
+      { BOOST_STATIC_CONSTANT( wchar_t, value = L'.' ); };
+    template<> struct colon<wpath>
+      { BOOST_STATIC_CONSTANT( wchar_t, value = L':' ); };
+# endif
+
 # ifdef BOOST_WINDOWS_PATH
     template<class Path> struct path_alt_separator
       { BOOST_STATIC_CONSTANT( char, value = '\\' ); };
+#   ifndef BOOST_FILESYSTEM_NARROW_ONLY
+    template<> struct path_alt_separator<wpath>
+      { BOOST_STATIC_CONSTANT( wchar_t, value = L'\\' ); };
+#   endif
 # endif
 
     //  workaround for VC++ 7.0 and earlier issues with nested classes