Posts by QQnoobie

OVERDUE UPDATE:

Realized that I needed to declare my variables and set to each part of my calculation along with your correction Ketsuekiame. Thank you.

I am trying to do here is have my for loop go through the array for a single student and calculate GPA: (grade * credithour) + (grade * credithour) / (divide) credithour+credithour = gpa

For example, suppose a student had these grades:
A in 3 hour course
B in 3 hour course
A in 2 hour course
The GPA for this student would be:
((A * 3) + (B * 3) + (A * 2) )/ (3 + 3 + 2) =
((4 * 3) + (3 * 3) + (4 * 2) )/ (3 + 3 + 2) =
(12 + 9 + 8)/ (3 + 3 + 2) = 29/8 = 3.625 GPA

Hope this makes more sense.

sorry about that... here is the code for my .h files
student.h

#ifndef STUDENT_H
#define STUDENT_H
#include <iostream>
#include <string>
using namespace std;

class Student{
private:
	string firstName;
	string lastName;
	string aNumber;
	double GPA;

public:
	Student ();
	Student (string f, string l, string idNo, double gPoint);

	string getfirstName () const;
	void setfirstName (string f);
	string getlastName () const;
	void setlastName (string l);
	string getaNumber () const;
	void setaNumber (string idNo);
	double getGPA ()const;
	void setGPA (double gPoint);
};
#endif

and classinformation.h

class ClassInformation{
private:
	int classNumber;
	string className;
	int creditHrs;
	char letterGrade;
	int pointGrade;

public:
	ClassInformation ();
	ClassInformation(int cNumber,string cName,int h, char g,int pg);

	int getclassNumber() const;
	void setclassNumber(int cNumber);
	string getclassName() const;
	void setclassName(string cName);
	int getcreditHrs() const;
	void setcreditHrs(int h);
	char getletterGrade () const;
	void setletterGrade (char g);
	int getpointGrade () const;
	void setpointGrade (int pg);
	
};

#endif

The error is " 7 IntelliSense: expression must be a modifiable lvalue c:\users\honeybunny\documents\visual studio 2010\projects\assignment5\assignment5\pass5.cpp 64
and Warning 1 warning C4552: '+' : operator has no effect; expected operator with side-effect c:\users\honeybunny\documents\visual studio 2010\projects\assignment5\assignment5\pass5.cpp 67"

I am trying to write a function that will compute GPA.

#include "Student.h"
#include "ClassInformation.h"

Student* setupStudent(){
	string f,l,idNo;
double gPoint=0;

	Student *studPtr1;
	studPtr1 = new Student ();

	cout<<"Enter first name ";
	cin>>f;
	studPtr1->setfirstName(f);
	cout<<"Enter last name ";
	cin>>l;
	studPtr1->setlastName(l);
	cout<<"Enter A number";
	cin>>idNo;
	studPtr1->setaNumber(idNo);
	cout<<endl;
	studPtr1->setGPA(gPoint);
	
	return studPtr1;
}

ClassInformation* setupClassInformationArrary(int *length){
	int *maxClasses;

	ClassInformation *classInfo;
	classInfo = new ClassInformation[*maxClasses];
	return classInfo; 
};


void readClassInformation(ClassInformation*singleGlass){
	string cName;
	int cNumber,h;
	char g;

	cout<<"Enter class name ";
	cin>>cName;
	singleGlass->setclassName(cName);//change these lines
	cout<<"Enter class number";
	cin>>cNumber;
	singleGlass->setclassNumber(cNumber);
	cout<<" Enter credit hours ";
	cin>>h;
	singleGlass->setcreditHrs(h);
	cout<<"Enter student's letter grade";
	cin>>g;
	singleGlass->setletterGrade(g);
}; 

void computeGPA (Student *studPtr1,ClassInformation *singleGlass[],int numClasses){
	int gpa=0;

	for (int i=1;i<numClasses;i++){
		"studPtr1.singleGlass[i].getletterGrade()"; *
		"singleGlass[i].getcreditHrs()"/
		gpa= gpa+ "singleGlass[i].getcreditHrs()";
	}
	// (grade * credithour) + (grade * credithour) / credithour+credithour = gpa
};

When I debug I have a warning of "+" operator has no effect, expected operator with side-effect.
Any help would be greatly appreciated. Thank you in advance.

Got it... needed to define within the function.

Student* setupStudent(){
	string f,l,idNo;
double gPoint=0;

	Student *studPtr1;
	studPtr1 = new Student ();

	cout<<"Enter first name ";
	cin>>f;
	studPtr1->setfirstName(f);
	cout<<"Enter last name ";
	cin>>l;
	studPtr1->setlastName(l);
	cout<<"Enter A number";
	cin>>idNo;
	studPtr1->setaNumber(idNo);
	cout<<endl;
	studPtr1->setGPA(gPoint);
	
	return studPtr1;
}

Thank you for correcting my error...
Now with that now reading

Student* setupStudent(){
	Student *studPtr1;
	studPtr1 = new Student ();

	cout<<"Enter first name ";
	cin>>f;
	studPtr1->setfirstName(f);
	cout<<"Enter last name ";
	cin>>l;
	studPtr1->setlastName(l);
	cout<<"Enter A number";
	cin>>idNo;
	studPtr1->setaNumber(idNo);
	cout<<endl;
	studPtr1->setGPA(gPoint);
	{gPoint=0;}
	
	return studPtr1;

do I still need to define my identifier? I figured that it should read in from the class Student..

Trying to define a function that dynamically creates a Student object and then prompts the user for the info and returns pointer to a Student object.

class Student{
private:
	string firstName;
	string lastName;
	string aNumber;
	double GPA;
public:
	Student ();
	Student (string f, string l, string idNo, double gPoint);

	string getfirstName () const;
	void setfirstName (string f);
	string getlastName () const;
	void setlastName (string l);
	string getaNumber () const;
	void setaNumber (string idNo);
	double getGPA ()const;
	void setGPA (double gPoint);
};
#endif
.cpp 
void setupStudent(){
	Student *studPtr1;
	studPtr1 = new Student;

	cout<<"Enter first name ";
	cin>>f;
	studPtr1->getfirstName();
	cout<<"Enter last name ";
	cin>>l;
	studPtr1->getlastName();
	cout<<"Enter A number";
	cin>>idNo;
	studPtr1->getaNumber();
	cout<<endl;
	studPtr1->setGPA(double gPoint);{
		gPoint=0;}
	
	return studPtr1;