# Problem with loop.

• 10-12-2010
Squish
Problem with loop.
I'm trying to code a basic calculator.
Thanks :)

Code:

```#include <iostream> using namespace std; float add( float x, float y ) {       return x + y; } float subtract( float x, float y ) {       return x - y; } float multiply( float x, float y ) {       return x * y; } float divide( float x, float y ) {       return x / y; } int main() {     int s, x, y, l;     l = 0;     while ( l = 0 )     {           cout<<"What would you like to do?\n\n";           cout<<"1. Add, 2. Subtract, 3. Multiply, 4. Divide\n";           cin>> s;           cin.ignore();           if ( s == 1 )           {               cout<<"\nYou would like to add.\n\n";               cout<<"Enter two numbers.\n";               cin>> x >> y;               cin.ignore();               cout<<"\nAnswer... "<< add( x, y ) <<"\n";               l++;           }           else if ( s == 2 )           {               cout<<"\nYou would like to subtract.\n\n";               cout<<"Enter two numbers.\n";               cin>> x >> y;               cin.ignore();               cout<<"\nAnswer... "<< subtract( x, y ) <<"\n";               l++;           }           else if ( s == 3 )           {               cout<<"\nYou would like to multiply.\n\n";               cout<<"Enter two numbers.\n";               cin>> x >> y;               cin.ignore();               cout<<"\nAnswer... "<< multiply( x, y ) <<"\n";               l++;           }           else if ( s == 4 )           {               cout<<"\nYou would like to divide.\n\n";               cout<<"Enter two numbers.\n";               cin>> x >> y;               cin.ignore();               cout<<"\nAnswer... "<< divide( x, y ) <<"\n";               l++;           }           else           {               cout<<"\nInvalid selection.\n\n";           }           cin.get();     } }```
• 10-12-2010
Salem
What does your while loop actually do?

Compare your use of = and ==
• 10-12-2010
Squish
I see my error.