X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fcore%2Fmaputils.h;fp=source%2Fcore%2Fmaputils.h;h=0f863b46fdf7dea307f251be4823a4e63cdcbc4e;hp=8c642fb9c57a1f9acda6ba5ab2d0dc5311316306;hb=676f6faa92d23c2096a6a85cac819925dbdc1a88;hpb=e0266badf098a5cec2512eb693bca771e35fd3ab

diff --git a/source/core/maputils.h b/source/core/maputils.h
index 8c642fb..0f863b4 100644
--- a/source/core/maputils.h
+++ b/source/core/maputils.h
@@ -9,11 +9,17 @@ namespace Msp {
 
 namespace MapUtilsInternal {
 
+/* This dummy struct is used to introduce a conversion, making the overloaded
+operator below worse than the templated one provided in lexicalcast.h. */
+struct Any
+{
+	template<typename T>
+	Any(const T &) { }
+};
+
 /* This must be hidden in the internal namespace to avoid interfering with
-other things.  There may be problems if a key type has operator<< for ostream
-but not LexicalConverter. */
-template<typename T>
-void operator<<(LexicalConverter &, const T &)
+other things. */
+inline void operator<<(LexicalConverter &, Any)
 { }
 
 template<typename T>