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Question

编译时出现一堆警告，看不懂什么意思，请指点
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxcmn.inl(220) : warning C4786: 'std::_Tree<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char> 
> const ,CFileInfo *>,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,CFileInfo *,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Kfn,std::less<std::basic
_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >' : identifier was truncated to '255' characters in the debug information
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxcmn.inl(220) : warning C4786: 'std::_Tree<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char> 
> const ,CFileInfo *>,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,CFileInfo *,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Kfn,std::less<std::basic
_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Redbl' : identifier was truncated to '255' characters in the debug information
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxcmn.inl(220) : warning C4786: 'std::_Tree<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char> 
> const ,CFileInfo *>,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,CFileInfo *,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Kfn,std::less<std::basic
_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::iterator' : identifier was truncated to '255' characters in the debug information
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxcmn.inl(220) : warning C4786: 'std::_Tree<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char> 
> const ,CFileInfo *>,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,CFileInfo *,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Kfn,std::less<std::basic
_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Node' : identifier was truncated to '255' characters in the debug information
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxcmn.inl(220) : warning C4786: 'std::_Tree<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char> 
> const ,CFileInfo *>,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,CFileInfo *,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::_Kfn,std::less<std::basic
_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<CFileInfo *> >::const_iterator' : identifier was truncated to '255' characters in the debug information

Answer 1

vc对std的支持不是很完美，不用担心

Answer 2

可以不用理会，正如 flyelf(空谷清音)所说，vc对stl支持的不是很好