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My calculator.

kadajett (3)
I am kinda newish to c++.
I just wrote this calculator, and I want to make it... better.
Any idea's
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#include <iostream>

using namespace std;
void add(int a, int b);
void sub(int a, int b);
void rem(int a, int b);
void mult(int a, int b);
void divd(int a, int b);

int main()
{
int num1, num2;
char sign;
bool repeat;
system(" TITLE calculator");
do{
     repeat = false;
     system("CLS");
 cout << "Enter your two numbers." << endl;
 cin >> num1;
 cin >> num2;
 cout <<"Now enter your sign." << endl;
 cin >> sign;

 if(sign == '+')
 {
 add(num1, num2);
 }
 
 if(sign == '-')
 {
 sub(num1, num2);
 }
 
 if (sign == '%')
 {
 rem(num1, num2);
 }
 if (sign == '*')
 {
 mult(num1, num2);
 }
 if (sign == '/')
 {
 divd(num1, num2);
 }


    cout << " would you like to repeat? 0. no 1, yes " << endl;
    cin >> repeat;
}while(repeat == true);
return 0;
}
//...
void add(int a, int b)
{

int r;
r = a + b;

cout << a << "+" << b << "=" << r << endl;

system("pause");
}
//...
void sub(int a, int b)
{

int r;
r = a - b;

cout << a << "-" << b << "=" << r << endl;

system("pause");
}//...
void rem(int a, int b)
{

int r;
r = a % b;

cout << a << "%" << b << "=" << r << endl;

system("pause");
}//...
void mult(int a, int b)
{

int r;
r = a * b;

cout << a << "*" << b << "=" << r << endl;

system("pause");
}//...
void divd(int a, int b)
{

int r;
r = a / b;

cout << a << "/" << b << "=" << r << endl;

system("pause");
}//...
Last edited on
DiptenduDas (94)
Hi kadajett,
Gud Program.... :-)


To make it better...

1. Use SWITCH case instead of if for the below lines of code...
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 if(sign == '+')
 {
 add(num1, num2);
 }
 
 if(sign == '-')
 {
 sub(num1, num2);
 }
 
 if (sign == '%')
 {
 rem(num1, num2);
 }
 if (sign == '*')
 {
 mult(num1, num2);
 }
 if (sign == '/')
 {
 divd(num1, num2);
 }


2. Also U have to validate the input data. i.e. If User gives some alphanumeric data then warn the user in that regard.
kadajett (3)
Ok I will work on that, but I need to crash for tonight.
Thanks for the advice. :)
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