[ATL] does ATL has any collection tool lik CMap in MFC?

[ATL] does ATL has any collection tool lik CMap in MFC?

• Eric Vandenberg

  i cant even pass the compile this time...got this verbos error message

  c:\program files\microsoft visual studio 8\vc\include\list(1163) : error C2664: 'std::allocator<_Ty>::construct' : cannot convert parameter 1 from 'BSTR *' to 'ATL::CComBSTR *'
  1> with
  1> [
  1> _Ty=ATL::CComBSTR
  1> ]
  1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
  1> c:\program files\microsoft visual studio 8\vc\include\list(1154) : while compiling class template member function 'std::_List_nod<_Ty,_Alloc>::_Node *std::list<_Ty>::_Buynode(std::_List_nod<_Ty,_Alloc>::_Node *,std::_List_nod<_Ty,_Alloc>::_Node *,const _Ty &)'
  1> with
  1> [
  1> _Ty=ATL::CComBSTR,
  1> _Alloc=std::allocator<ATL::CComBSTR>
  1> ]
  1> c:\documents and settings\david\my documents\visual studio 2005\projects\simstest\simstest\mysqlcmd.h(66) : see reference to class template instantiation 'std::list<_Ty>' being compiled
  1> with
  1> [
  1> _Ty=ATL::CComBSTR
  1> ]

  dont understand what it talking about

  
  
  

• mannix

  oh, really thx!

  this is really complicate!

  how could i relate list and CAdapt before i learned CAdapt

  
  
  

• MrC150909

  DavidShen wrote:

  oh, really thx! this is really complicate! how could i relate list and CAdapt before i learned CAdapt

  list is an STL collection, whereas CAdapt is a ATL class. They don't really relate to each other. If you are using ATL, it may be a good idea to use the ATL collections whenever there's one available that does what you want.

  
  
  

• prosimma

  here is my test code, tested in win32 console+atl support

  #include "stdafx.h"

  #include <list>

  using namespace std;

  int _tmain(int argc, _TCHAR* argv[])
  {
  CComBSTR myBSTR(L"abc");
  list<CComBSTR> mylist;

  mylist.push_back( myBSTR );

  
  return 0;
  }

  STILL GOT THAT ERROR MESSAGE!

  please help me!

  
  
  

• HakanA

  yes, what i really want to use is std:list.

  i tried list<PTSTR> and list<CComBSTR>, but it does not work... i dont know why!

  having a hard time

  
  
  

• bojanplatisa

  I thought those containers were merged in VC2005 Anyhow, CMap and the MFC containers are rubbish. The container you want to use is std::map, which, unlike CMap, is part of the C++ language.

  http://www.sgi.com/tech/stl/Map.html

  
  
  

• Brent VanderMeide - Architect

  i got a bad_alloc exception
  
  

• Jorge Serrano P&amp;#233;rez

  oh, strange...

  i will try again later, thx!

  
  
  

• Dakiar

  list<CComBSTR> strings;

  CComBSTR bstr(L"test");

  strings.push_back(bstr);

  Works for me.

  
  
  

• David Scrutton

  To add to what CG said, if you want a strictly ATL class, there's one called CSimpleMap - I don't know how fully functional it is compared to CMap though.
  
  

• quinlivan

  You cannot use CComBSTR with STL collections, because CComBSTR overloads the & operator. You need to use the CAdapt class as follows :

  CComBSTR myBSTR(L"abc");
  list<CAdapt <CComBSTR> > mylist;
  mylist.push_back(myBSTR);

  DavidShen wrote:

  here is my test code, tested in win32 console+atl support #include "stdafx.h" #include <list> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { CComBSTR myBSTR(L"abc"); list<CComBSTR> mylist; mylist.push_back( myBSTR ); return 0; } STILL GOT THAT ERROR MESSAGE! please help me!

  
  
  

• Gu1234

  well, maybe i have code mistake somewhere...checking up
  
  

• Jonas Samuelsson

  This means you're trying to pass a BSTR* in to the container somewhere when you need to construct a CCOMBSTR from it first, and pass that in. It won't implicitly convert for you.

  
  
  

• deys

  A list and a map are very different containers. What do you mean by 'it doesn't work'

  
  
  
• [ATL] does ATL has any collection tool lik CMap in MFC?