include/wx/meta/removeref.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/meta/removeref.h
   3 // Purpose:     Allows to remove a reference from a type.
   4 // Author:      Vadim Zeitlin
   5 // Created:     2012-10-21
   6 // Copyright:   (c) 2012 Vadim Zeitlin <vadim@wxwidgets.org>
   7 // Licence:     wxWindows licence
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_META_REMOVEREF_H_
  11 #define _WX_META_REMOVEREF_H_
  12
  13 // wxRemoveRef<> is similar to C++11 std::remove_reference<> but works with all
  14 // compilers (but, to compensate for this, doesn't work with rvalue references).
  15
  16 // Except that it doesn't work with VC++ 6 as there doesn't seem to be any way
  17 // to partially specialize a template for references with it.
  18 #ifndef __VISUALC6__
  19
  20 template <typename T>
  21 struct wxRemoveRef
  22 {
  23     typedef T type;
  24 };
  25
  26 template <typename T>
  27 struct wxRemoveRef<T&>
  28 {
  29     typedef T type;
  30 };
  31
  32 #define wxHAS_REMOVEREF
  33
  34 #endif // !__VISUALC6__
  35
  36 #endif // _WX_META_REMOVEREF_H_