help adding function to this code

[nlawre21]

I was going to post this in the beginners forum, but the sticky said to not post things not suitable for beginners.

I've picked up a guide for learning to program in C++, and it has an example code to convert celsius to fahrenheit.

In an effort to grasp the concepts better I want to make this code ask me for the temperature, and then ask if it is fahrenheit or celsius. Depending on my response I want it to do the conversions and spit out the opposite unit. I'll paste the original code, since what I've done doesn't work.

<
#include <cstdio>
#include <cstdlib>
#include <iostream>

using namespace std;

int main(int nNumberofArgs, char* pszArgs[])
{
int celsius;
cout << "Enter the temperature in Celsius:';
cin >> celsius;

int fahrenheit;
fahrenheit = celsius * 9/5 + 32;

cout << "Fahrenheit value is :";
cout << fahrenheit << endl;

system("PAUSE")
return 0;
>

I think I need to use an if/else but I can't figure out how to get the code to look at what I've typed and assign the number to the int celsius or int fahrenheit.

Thanks in advance for the help!

[pogrady]

You can use a switch statement.

//...

char temp = 0;

cout<<"Please enter c for celsius or f for farenheit: ";
cin>>temp;

switch(temp)
{
case 'c':
//do temperture conversion for celsius
break;
case 'f':
//do temperture conversion for farenheit
break;
}

//output the temperature to the user
//hold the window open
return 0;

try to get away from using system("pause"). It is not cross platform, and tends to generate virus warnings.

[nlawre21]

thank you! I hadn't known about switches! and right, the pause wasn't working for my mac anyways. I think this book was windows focused.