[Swig-user] std_vector and c#

[Eric S. <ras...@ce...>]

Searching the net I found some old posts (had to use Google cache) about
std_list for c#. I have managed to convert std_vector to use std::list,
and got it to work.

Only had a problem with std_vector, and had to make a change. It uses
=93const CTYPE&=94 in a few places, I had to change that to just =93CTYPE=
=94.  The
const & is giving me problems when I have a vector of pointers, like
std::vector<cVal*>.  I want to know if this is a bug or maybe a problem
with my pointer typemape.  But the changes to std_vector and my std_list
work.

Here is the typemape:
//pointer reference typemaps:
%define PTR_REF_TYPEMAPS(CSTYPE, CTYPE)
#if defined(SWIGCSHARP)
%typemap(ctype)    CTYPE *, CTYPE &    "void *"
%typemap(imtype)   CTYPE *, CTYPE &    "IntPtr"
%typemap(cstype)   CTYPE *, CTYPE &    "CSTYPE"
%typemap(csin)     CTYPE *, CTYPE &    "CSTYPE.getCPtr($csinput)"
%typemap(csout)    CTYPE *, CTYPE &    {
    IntPtr cPtr =3D $imcall;
    return (cPtr =3D=3D IntPtr.Zero) ? null : new CSTYPE(cPtr, $owner);
}
%typemap(in)       CTYPE *, CTYPE &    %{ $1 =3D (CTYPE *)$input; %}
%typemap(out)      CTYPE *, CTYPE &    %{ $result =3D (void *)$1; %}
#endif
%enddef

Defining the template:
PTR_REF_TYPEMAPS(cVal, eTestLib::cVal*)
SWIG_STD_VECTOR_SPECIALIZE(cVal, eTestLib::cVal*)
%template(VectorcVal) std::vector< eTestLib::cVal* >;


What I=92m Swigging:
namespace eTestLib  {
	class _LibExport cVal	{
	protected:
		int mMyVal;
	public:
		cVal(int n);
		int getMyVal();
		void setMyVal(int newval);
	};
	typedef std::list<cVal*> cValList;
	typedef std::vector<cVal*> cValVec;
	class _LibExport cTest	{
	protected:
		cValList mList;
		cValVec mVec;
	public:
		cTest();
		~cTest();
		void addListItem (int v);
		int getListItem(int index);
		cValList& getListList();
		void addVectorItem (int v);
		int getVectorItem(int index);
		cValVec& getVectorVector();
	};
}


And the Compile errors with unmodified std_vector.i :
c:\ericTemp\ogre\ogreaddons\eric\swig\test2\Swigdll2\test_wrap.cxx(389) :
error C2440: '=3D' : cannot convert from 'const eTestLib::cVal *' to
'std::allocator<_Ty>::value_type'
        with
        [
            _Ty=3DeTestLib::cVal *
        ]
        Conversion loses qualifiers
c:\ericTemp\ogre\ogreaddons\eric\swig\test2\Swigdll2\test_wrap.cxx(407) :
error C2664: 'std::vector<_Ty>::iterator
std::vector<_Ty>::insert(std::vector<_Ty>::iterator,const _Ty & )' :
cannot convert parameter 2 from 'const eTestLib::cVal *' to
'eTestLib::cVal *const & '
        with
        [
            _Ty=3DeTestLib::cVal *
        ]
        Conversion loses qualifiers
c:\ericTemp\ogre\ogreaddons\eric\swig\test2\Swigdll2\test_wrap.cxx(435) :
error C2664: 'std::vector<_Ty>::vector(std::vector<_Ty>::size_type,const
_Ty & )' : cannot convert parameter 2 from 'const eTestLib::cVal *' to
'eTestLib::cVal *const & '
        with
        [
            _Ty=3DeTestLib::cVal *
        ]
        Conversion loses qualifiers
c:\ericTemp\ogre\ogreaddons\eric\swig\test2\Swigdll2\test_wrap.cxx(999) :
error C2664: 'std::vector<_Ty>::push_back' : cannot convert parameter 1
from 'const eTestLib::cVal *' to 'eTestLib::cVal *const & '
        with
        [
            _Ty=3DeTestLib::cVal *
        ]
        Conversion loses qualifiers