wxWeakRef can work with forward-declared classes provided dynamic_cast<> is
available but this wasn't detected as being the case due to the use of the
obsolete HAVE_DYNAMIC_CAST in its code.
Replace HAVE_DYNAMIC_CAST with !wxNO_RTTI to fix this.
Also add a unit test checking that this does work.
Closes#11916.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63986 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
For some mysterious reason, adding non-template wxWeakRef ctor breaks VC6
build with the apparently completely unrelated errors:
include\wx/toplevel.h(223) : error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class wxWindow *' (or there is no acceptable conversion)
include\wx/toplevel.h(231) : error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class wxWindow *' (or there is no acceptable conversion)
src\common\dummy.cpp(27) : error C2856: #pragma hdrstop cannot be inside an #if block
Simply don't define it for VC6 to at least allow the code not using wxWeakRef
to compile.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63955 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Define element_type for consistency with other classes (wxSharedPtr, weak_ptr)
and to allow accessing the type from the template code.
Also remove the apparently unnecessary template assignment operator:
assignment from an expression convertible to type T* works even without it and
while assigning something implicitly convertible to T* wouldn't work now, it's
for the best as we don't want to rely on such implicit conversions.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63933 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
