C/C++ string to int or int to string

string to int

{

    _ACRTIMP char* __cdecl itoa(
        _In_                   int   _Value,
        _Pre_notnull_ _Post_z_ char* _Buffer,
        _In_                   int   _Radix
        );

}

int to stirng

{

_Check_return_ _CRT_JIT_INTRINSIC _ACRTIMP int       __cdecl atoi   (_In_z_ char const* _String);

}