What am I doing wrong?!

I'm supposed to grab user input for name, hrs worked, pay rate, and tax bracket: all for four different employees. My code compiles all right, but when it runs, it doesn't wait for the user's name. It outputs like this:

Please enter your full name
Name:
Enter your total hours worked

Then loops endlessly when I enter hours.

Could someone tell me what I'm missing?
(code below)

Code:

#include <iostream.h>
#include <iomanip.h>
#include <string.h>





float gross (float a, float b) //a=hrs, b=rate
{
  float r;
  r=a*b;
  return r;
  
}
float tax (float c, float d) //c=gross, d=rate
{
	float t;
	t=c*(d/100);
	return t;

}
float net (float e, float f) //e=gross, f=tax
{
	float n;
	n=e-f;
	return n;
}

 main()

{
            

	int num;
	cout<<"Run Program? (1 for yes, 0 for no)"<<endl;
	cin>>num;
	while (num=1)
		
	{
		  
//input.......................
		float hours;
		float taxp;
		float rate;
		
		
		char mybuffer [30];
        cout<<"Please enter your full name"<<"\n";
		cin.getline (mybuffer,30,'\n');
		cout<<"Name: "<<mybuffer<<endl;
		
		cout<<"Enter your total hours worked"<<endl;

		cin>>hours;
	
		cout<<"Enter your tax percentage"<<endl;

		cin>>taxp;
			
		cout<<"Enter your pay rate"<<endl;
	
		cin>>rate;



//output...............
		
		
		
		float z;
		z= gross (hours,rate);
		cout<<"Gross Pay: "<<gross<<endl;
	

        float y;
		y= tax ( z,taxp);
		cout<<"Tax Paid: "<<tax<<endl;

//totals.........................
;		
	}	
	


					{
	cout<<"Thank you!  Please come again!";
	return 0;
			}







 }

If I start a program and get asked if I really wanted to start the program, I would be confused. Check your program flow, skip the first question and simply set that number to 1 the first time. Ask later in the loop. This solves your problem, but is not the reason for it. When you press enter for the first question it stays in the buffer and the getline gets it as the first char and stops there. Consult your helpfile for cin and how to clear input streams. I guess it's something like cin.clear();

"while (num=1)" should be "while(num == 1)"

float z;
z= gross (hours,rate);
cout<<"Gross Pay: "<<gross<<endl; // ?? should be z ??

Same in the next block with tax.

cout<<"Gross Pay: "<<gross<<endl; // ?? should be z ??

I cannot believe I just spent 2 and 1/2 hours on this because I forgot to reference my own variable. I'm off to die now.

Oh, and thanks alot for pointing that out.

what ever happened to int in front of main. you have it returning 0 as it should, but I don't see an int anywhere, WHERE IS YOUR INT, AHHH...

Code:

main()
{
  //
}

change this to

Code:

int main( void )
{

}