vc++6.0 stl map에서 warning이 계속 나는군요

#include <iostream> 

#include <map> 
using namespace std; 

void add_int(map<char *, char *> &tmap); 


void main(void) 
{ 
   map<char *, char *> tmap; 

   cout << tmap.size() << endl; 

   add_int(tmap); 

   cout << tmap.size() << endl; 

} 

  

void add_int(map<char *, char *> &tmap) 
{ 

	tmap.insert(map<char *, char *>::value_type("A","Abb"));
	tmap.insert(map<char *, char *>::value_type("B","Bccc"));
	map<char *, char *>::iterator it;
	it = tmap.find("A");
	cout << it->second << endl;
	it = tmap.find("B");
	cout << it->second << endl;

	  
}

인데 warning이 9개 있습니다. 실행은되는데.. 왜 이런지요 가르

침 부탁드립니다.

c:\c++ test\aa\chatserver\aa.cpp(19) : warning C4786: 'std::reverse_bidirectional_iterator<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char
 *> >::iterator,std::pair<char * const,char *>,std::pair<char * const,char *> &,std::pair<char * const,char *> *,int>' : identifier was truncated to '255' characters in the debug information
c:\c++ test\aa\chatserver\aa.cpp(19) : warning C4786: 'std::reverse_bidirectional_iterator<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char
 *> >::const_iterator,std::pair<char * const,char *>,std::pair<char * const,char *> const &,std::pair<char * const,char *> const *,int>' : identifier was truncated to '255' characters in the debug information
c:\c++ test\aa\chatserver\aa.cpp(19) : warning C4786: 'std::pair<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::iterator,std::_Tree
<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::iterator>' : identifier was truncated to '255' characters in the debug information
c:\c++ test\aa\chatserver\aa.cpp(19) : warning C4786: 'std::pair<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::const_iterator,std:
:_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::const_iterator>' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\xtree(182) : warning C4786: 'std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::~
_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\xtree(162) : warning C4786: 'std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::_
Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__ehhandler$?insert@?$_Tree@PADU?$pair@QADPAD@std@@U_Kfn@?$map@PADPADU?$less@PAD@std@@V?$allocator@PAD@2@@2@U?$less@PAD@2@V?$allocator@PAD@2@@std@@QAE?AU?$pair@Vitera
tor@?$_Tree@PADU?$pair@QADPAD@std@@U_Kfn@?$map@PADPADU?$less@PAD@std@@V?$allocator@PAD@2@@2@U?$less@PAD@2@V?$allocator@PAD@2@@std@@_N@2@ABU?$pair@QADPAD@2@@Z' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__unwindfunclet$?insert@?$_Tree@PADU?$pair@QADPAD@std@@U_Kfn@?$map@PADPADU?$less@PAD@std@@V?$allocator@PAD@2@@2@U?$less@PAD@2@V?$allocator@PAD@2@@std@@QAE?AU?$pair@Vi
terator@?$_Tree@PADU?$pair@QADPAD@std@@U_Kfn@?$map@PADPADU?$less@PAD@std@@V?$allocator@PAD@2@@2@U?$less@PAD@2@V?$allocator@PAD@2@@std@@_N@2@ABU?$pair@QADPAD@2@@Z$0' : identifier was truncated to '255' characters in the debug information
c:\program files\microsoft visual studio\vc98\include\utility(21) : warning C4786: 'std::pair<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<c
har *> >::iterator,bool>::pair<std::_Tree<char *,std::pair<char * const,char *>,std::map<char *,char *,std::less<char *>,std::allocator<char *> >::_Kfn,std::less<char *>,std::allocator<char *> >::iterator,bool>' : identifier was truncated to '255' c
haracters in the debug information