class card {                                                                                                                                                                                      
    string card_center(string);
    public:
         int value;
         string face;
};


// Centers the card face on the card                                                                                                                                                              
string card::card_center(string face) {                                                                                                                                                           
    if (face.length > 7)                                                                                                                                                                          
        face=face.substr(0,7);                                                                                                                                                                    
    if (face.length % 2 == 0)                                                                                                                                                                     
        face=face.substr(0,face.length/2)+" "+face.substr(face.length/2);                                                                                                                         
    string space=new string(' ',7-face.length);                                                                                                                                                   
    face="|"+space+face+space+"|";                                                                                                                                                                
    delete space;                                                                                                                                                                                 
    return face;                                                                                                                                                                                  
}         


this above code gives me this error...

main.cpp:60: error: extra qualification 'card::' on member 'card_center'
main.cpp:60: error: 'std::string card::card_center(std::string)' cannot be overloaded
main.cpp:12: error: with 'std::string card::card_center(std::string)'
main.cpp:71: error: extra qualification 'card::' on member 'card'
main.cpp:71: error: 'card::card(int, std::string, char)' cannot be overloaded
main.cpp:18: error: with 'card::card(int, std::string, char)'
main.cpp:82: error: expected `}' at end of input
main.cpp: In member function 'std::string card::card_center(std::string)':
main.cpp:61: error: invalid use of member (did you forget the '&' ?)
main.cpp:63: error: invalid use of member (did you forget the '&' ?)
main.cpp:64: error: invalid use of member (did you forget the '&' ?)
main.cpp:64: error: invalid use of member (did you forget the '&' ?)
main.cpp:65: error: invalid use of member (did you forget the '&' ?)
main.cpp:67: error: type 'struct std::string' argument given to 'delete', expected pointer
main.cpp: At global scope:
main.cpp:82: error: expected unqualified-id at end of input