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