Consider the following program. Assume all variables are declared and the program compiles.
- Consider the following program. Assume all variables are declared and the program compiles.
#include <iostream>
using namespace std;
void getVal(int&, int&);
void procVal(int, int&);
int x;
int main() {
int intNum1;
int intNum2;
x = 6;
getVal(intNum1, intNum2);
cout << intNum1 << " " << intNum2 << " " << x << endl;
procVal(intNum1, intNum2);
cout << intNum1 << " " << intNum2 << " " << x << endl;
return 0;
}
void getVal(int& a, int& b)
{
cout << “Enter value for a: “ << endl;
cin >> a; /// The user enters 1
cout << “Enter value for b: “ << endl;
cin >> b; /// The user enters 2
x = a * b;
}
void procVal(int u, int& v)
{
int intNum3;
intNum3= x;
v = intNum3 * 4;
u = u - v;
}
Answer the following questions:
- Considering the function procVal, parameter 1 is called by value. What occurs in memory for parameter 1 and local variable int intNum3? Hint: consider memory, parameters and local variables
Program in C++:
#include <iostream>
using namespace std;
void getVal(int&, int&);
void procVal(int, int&);
int x;
int main() {
int intNum1;
int intNum2;
x = 6;
getVal(intNum1, intNum2);
cout << intNum1 << " " << intNum2 << " " << x << endl;
procVal(intNum1, intNum2);
cout << intNum1 << " " << intNum2 << " " << x << endl;
return 0;
}
void getVal(int& a, int& b)
{
cout << "Enter value for a:" << endl;
cin >> a; /// The user enters 1
cout << "Enter value for b: "<< endl;
cin >> b; /// The user enters 2
x = a * b;
}
void procVal(int u, int& v)
{
int intNum3;
intNum3= x;
v = intNum3 * 4;
u = u - v;
}
OUTPUT:
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