do the VC6 hacks only when compiling with VC6

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@51454 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/meta/if.h b/include/wx/meta/if.h
index 450ef24bf148da5a33915577d3d32b2480b33104..3de045a61f06aa28dcc87ccd444196104a7f34f2 100644 (file)
--- a/include/wx/meta/if.h
+++ b/include/wx/meta/if.h
@@ -53,7 +53,11 @@ struct wxIfImpl<true>
 {
     template<typename TTrue, typename TFalse> struct Result
     {
 {
     template<typename TTrue, typename TFalse> struct Result
     {

+#if defined(__VISUALC__) && !wxCHECK_VISUALC_VERSION(7)

         struct value : TTrue { };
         struct value : TTrue { };

+#else
+        typedef TTrue value;
+#endif

     };
 };
 
     };
 };
 


@@ -63,7 +67,11 @@ struct wxIfImpl<false>
 {
     template<typename TTrue, typename TFalse> struct Result
     {
 {
     template<typename TTrue, typename TFalse> struct Result
     {

+#if defined(__VISUALC__) && !wxCHECK_VISUALC_VERSION(7)

         struct value : TFalse { };
         struct value : TFalse { };

+#else
+        typedef TFalse value;
+#endif

     };
 };
 
     };
 };
 


@@ -77,9 +85,15 @@ struct wxIfImpl<false>
 template<bool Cond, typename TTrue, typename TFalse>
 struct wxIf
 {
 template<bool Cond, typename TTrue, typename TFalse>
 struct wxIf
 {

+#if defined(__VISUALC__) && !wxCHECK_VISUALC_VERSION(7)

     // notice that value can't be a typedef, VC6 refuses to use it as a base
     // class in this case
     struct value : wxPrivate::wxIfImpl<Cond>::Result<TTrue, TFalse>::value { };
     // notice that value can't be a typedef, VC6 refuses to use it as a base
     // class in this case
     struct value : wxPrivate::wxIfImpl<Cond>::Result<TTrue, TFalse>::value { };

+#else // !VC6++
+    typedef typename wxPrivate::wxIfImpl<Cond>
+                     ::template Result<TTrue, TFalse>::value
+            value;
+#endif

 };
 
 #endif // _WX_META_IF_H_
 };
 
 #endif // _WX_META_IF_H_