X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9356b709aa15b5304f9fcae7313bc90c451fc4c6..0d6e0565c62a19264eb7d02dc2c2a1bad403d3f7:/include/wx/strvararg.h?ds=sidebyside

diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index e60392d2f7..b7a1a19d86 100644
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -124,11 +124,6 @@ class WXDLLIMPEXP_FWD_BASE wxString;
 // accounts for string changes done by wxArgNormalizer<>
 //
 // Note that this class can _only_ be used for function arguments!
-#ifdef __VISUALC__
-    // "struct 'wx[W]CharBuffer<T>' needs to have dll-interface to be used by
-    // clients of class 'wxString'" - this is private, we don't care
-    #pragma warning (disable:4251)
-#endif
 class WXDLLIMPEXP_BASE wxFormatString
 {
 public:
@@ -185,9 +180,6 @@ private:
 private:
     wxCharBuffer  m_char;
     wxWCharBuffer m_wchar;
-#ifdef __VISUALC__
-    #pragma warning (default:4251)
-#endif
 
     // NB: we can use a pointer here, because wxFormatString is only used
     //     as function argument, so it has shorter life than the string
@@ -235,10 +227,21 @@ struct wxFormatStringArgumentFinder<const wxFormatString&>
 
 template<>
 struct wxFormatStringArgumentFinder<wxFormatString>
-{
-    static wxFormatStringArgument find(const wxFormatString& arg)
-        { return wxFormatStringArgument(&arg); }
-};
+    : public wxFormatStringArgumentFinder<const wxFormatString&> {};
+
+// avoid passing big objects by value to wxFormatStringArgumentFinder::find()
+// (and especially wx[W]CharBuffer with its auto_ptr<> style semantics!):
+template<>
+struct wxFormatStringArgumentFinder<wxString>
+    : public wxFormatStringArgumentFinder<const wxString&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxCharBuffer&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxWCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxWCharBuffer&> {};
 
 
 // ----------------------------------------------------------------------------