#include using namespace std; class NiftyEmailProgram...">
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What is the problem with the following code?

#include "stdafx.h"
#include <string>
#include <map>
using namespace std;

class NiftyEmailProgram {
private:
    typedef map<string, string> NicknameMap;
    NicknameMap nicknames;

public:
    void ShowEmailAddress(const string& nickname) const
    {
        NicknameMap::const_iterator i = nicknames.find(nickname);

        if ( i != nicknames.end() )
        {
        }
    }

};

int main(int argc, char* argv[])
{
    printf("Hello World!\n");
    return 0;
}

When I compile the above code in VC6.0, I saw a lot of warnings. If I use Warning Level 4 and treat all warnings as an error, then the output error from STLFilt looks like this:

Compiling...
t3.cpp
c:\devstudio_6.0\vc98\include\xtree(118): error C2220: warning treated as error - no object file generated
    c:\devstudio_6.0\vc98\include\map(46): see reference to class template instantiation 'map<string,string>' being compiled
    C:\TEMP\t3\t3.cpp(12): see reference to class template instantiation 'map<string,string>' being compiled
Error executing cl.exe.  


t3.exe - 1 error(s), 26 warning(s)
Tool returned code: 0

Now, what is the problem of this code and how to fix it?

thank

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2 answers

Try posting raw warnings.

However, I also remember that I received a level 4 warning from <xtree>at <map>that could be safely ignored (IIRC was C4702 , which is harmless).

, STL #include #pragma warning ( #ifdef, MSV++, @Alexandre C., )

#ifdef _MSC_VER
    //Disable the C4702 warning for the following headers
    #pragma warning(push)
    #pragma warning(disable:4702)
#endif // _MSC_VER
//map STL container
#include <map>
//list STL container
#include <list>
//vector STL container
#include <vector>
#ifdef _MSC_VER
    #pragma warning(pop)
#endif

3 ( ) :

#ifdef _MSC_VER
    // Lower the warning level to 3 just for this section
    #pragma warning(push, 3)
#endif
//map STL container
#include <map>
//list STL container
#include <list>
//vector STL container
#include <vector>
#ifdef _MSC_VER
    #pragma warning(pop)
#endif // _MSC_VER

. #pragma warning.

+3

, , STL, , , . , STLFilt, , .

, , typedefs / , , .

, .

: VC6, , :

c:\program files\microsoft visual studio\vc98\include\xtree(118) : 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 ,
std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::less<std::basic_string<cha
r,std::char_traits<char>,std::allocator<char> > >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >::_Kfn,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<std::basi
c_string<char,std::char_traits<char>,std::allocator<char> > > >' : identifier was truncated to '255' characters in the debug information
        c:\program files\microsoft visual studio\vc98\include\map(46) : see reference to class template instantiation '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 ,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<cha
r> >,std::less<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >::_Kfn,std::less<std::basic_string<char,std::char_traits<char>,std::allocato
r<char> > >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >' being compiled

, , , - 255 . , #include <map>:

#pragma warning(disable:4786)
+2

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