A Question Based Off An Answer Off Myfirstprogram

[iccaros]

jcl, you said "cstdlib' contains the declaration of system()"

but in my program

// This is a test program
#include <iostream>
#include <iomanip>

using namespae std;

int main ()
{
        init grade, total, gradeCounter;
        double average;

        system ("clear");

        cout << "Enter Grade or -1 to finish";
        cin >> grade

while ( grade != -1) {
        total += grade;
        ++gradeCounter;

}

if ( grade != -1) {

        average = static_cast< double> (total) / gradeCounter;

        if ( average >= 60)
                cout << "you pass!! with a grade point average of: " << average << endl;
        else
                cout << " You Failed!! with a Grade point average of: " << average << endl;
}

else
        cout << "You did not enter any Grades!!!!" << endl;

return 0;
}

you will see I did not add this.. why does it still work.. does gcc add the correct libs when I don't?

[iccaros]

// This is a test program
#include <iostream>
#include <iomanip>

using namespace std;

int main ()
{
        int grade, total, gradeCounter;
        double average;

        total = 0;
        gradeCounter = 0;

        system ("clear");

        cout << "Enter Grade or -1 to finish ";
        cin >> grade;

while ( grade != -1) {
        total += grade;
        ++gradeCounter;

        cout << "Enter Grade or -1 to finish ";
        cin >> grade;
}

if ( grade != -1) {

        average = static_cast< double > ( total ) / gradeCounter;

        if ( average >= 60 )
                cout << "you pass!! with a grade point average of: " << average  << setprecision( 2 ) << fixed << endl;
        else
                cout << " You Failed!! with a Grade point average of: " << average << setprecision( 2 ) << fixed << endl;
}

else
        cout << "You did not enter any Grades!!!!" << endl;

return 0;
}

ok this is not working no matter what I enter I get "you did not enter any grades???"

[iccaros]

so stupid.. my if should check gradeCounter not grade... man this language makes me feel stupid..

[jcl]

jcl, you said "cstdlib' contains the declaration of system()"

It looks like the iostream header indirectly pulls in cstdlib. It's not portable behavior as far as I know.

man this language makes me feel stupid..

Not an uncommon problem. Wait till you get into templates. Sometimes I can't believe people use C++ at all.

Edited April 6, 2005 by jcl