error c2780 & c2782

[on93]

anyone know what is this error , how to fix it ???

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#include<iostream>
#include<string>
#define MAX 6
#define size 10

using namespace std;

struct student {
string name;
int id;
string prog;
double cgpa;
};


class stinfo {
    private:
        student data[size];
        int last;
    public:
        stinfo();
        void selectionSort(int A[]);
        void add(string name, int id, string prog, double cgpa);
        void printAll(int count);

};

stinfo :: stinfo()
{
    last = 0 ;
}



void stinfo::add(string name, int id,string prog, double cgpa)
{
    if (last == size) {
    return ;
}
data[last].name = name;
data[last].id = id;
data[last].prog = prog;
data[last].cgpa = cgpa;
++last;
}

void stinfo::printAll(int count)
{
    if (last == size){
        return ;
    }else{

        for (int i =0; i<count; i++)
        {
            cout<<data[i].name<<endl
                <<data[i].id<<endl
                <<data[i].prog<<endl
                <<data[i].cgpa<<endl;
        }

    }
}
void stinfo::selectionSort(int A[]) 
{
    int i,j, temp;
     for (i=0; i<MAX; i++)
     {
         j = min(A,i);
         if(A[j]<A[i])
         {
            temp = A[j];
            A[j] = A[i];
            A[i] = temp;
         }       
    }
}




int min(int A[],int pos)
{
    int min = 9999;

    for (int i=pos+1; i<MAX; i++)
    {
        if (A[min] >A[i])
            min = i;
}
    return min;
}


int main()
{
    int a[]={ 33, 87, 2, 45,20, 77};
    char ans;
    string name1,prog1;
    int id1;
    double cgpa1;
    int count = 0;

    stinfo st;

    do{
    cout <<">>>>>  STUDENT INFOMATION RECORDING SYSTEM  <<<<< "<<endl;

    cout <<"A.) Insert NEW Student Record."<<endl
         <<"B.) print all Student Record."<<endl;
         <<"C.) Sorting."<<endl;


    cout <<"Please Choice ONE Option : ";
    cin >>ans;
    cout<<endl;

    switch ( ans )
    {
    case 'a':
    case 'A':
        cout <<endl;
        cout <<">>>>> INSERT NEW STUDENT INFORMATION <<<<<"<<endl;

        cout <<"NAME : ";
        cin >>name1;

        cout <<"ID: ";
        cin >>id1;

        cout <<"PROGRAMME : ";
        cin >>prog1;

        cout <<"CGPA: ";
        cin >>cgpa1;

        st.add ( name1,id1,prog1,cgpa1 );

        cout <<endl
             <<"INSERT COMPLETE... "<<endl
             <<endl;
        count ++;
        break;

    case 'b':
                                // sort at here
        st.printAll(count);
        break;

    case 'c':
    st.selectionSort(a);

    for (int i=0; i<MAX; i++)
        cout<<a[i]<<endl;

    break;

        default :
        cout <<"Please Try Again..."<<endl
             <<endl;
    }

    }while ( toupper(ans) !='F' ) ;

        cout <<"EXIT The Program..."<<endl
             <<endl;

    system("pause");
    return 0;

}

`

[deceptikon]

I considered forcing you to post the actual error message rather than the error code because most people haven't memorized all of the codes for Visual C++. But if you prototype your min() function, you'll fix those two and be left with the rogue semicolon in one of your output statements.

[Moschops]

j = min(A,i);
At this point, the compiler is not aware of any function named min that takes an int-pointer and an int.

cout <<"A.) Insert NEW Student Record."<<endl
<<"B.) print all Student Record."<<endl;
<<"C.) Sorting."<<endl;

Take a good look at the end of that second line.

[on93]

so i just have to change the code

j = min(A,i);

???

[mitrmkar]

I believe your problem(s) have already been pointed out, but ..

anyone know what is this error

Microsoft has documented their compiler/linker error/warning codes, so, you can always look those up on MSDN, for example Compiler Error C2780.

[NathanOliver]

You either need to forward declare you min function or just move it to be above the class. C++ uses a single pass compiler unlike java that uses a dual pass.

[Banfa]

Of course the way the function min is written it is very likely not to work, cause a segfault even because it accesses the 1000th element of an array of size 6.