rectangle of asterisks

i created a program where you input a height and width and the output is a rectangle of asterisks. and when a negative height or width or both is entered, the number changes to one, but the output screen is just black, can someone help me with this.

Code:

 
#include <iostream>
using namespace std;
int height;
int width;
int tmp;
int tmp2;

int main(){
      cout<<"Enter height rectangle: ";
	  cin>>height;
         if(height < 1)
			 height = 1;
		 else
			 if(height > 20)
				 height = 20;
		 
      cout<<"Enter width rectangle: ";
	  cin>>width;
         if(width < 1)
			 width = 1;
		 else 
			 if(width > 20)
				 width = 20;

      for(tmp = 0; tmp != width; tmp++) 
		  cout<<"*";

      for(tmp = 2; tmp != (height ); ++tmp){
		  cout<<"\n*";
         for(tmp2 = 2; tmp2 != (width); ++tmp2) 
			 cout<<" ";
		 cout<<"*";
	  }
      cout << "\n*";
      for(tmp = 1; tmp != (width); ++tmp)
      cout<<"*";                                 
      
      cout<<"\n";

	  cout<<height<<endl;
	  cout<<width<<endl;

	  system("pause");
	  return 0;
}

Code:

         if(width < 1)
			 width = 1;
..

 for(tmp = 1; tmp != (width); ++tmp)

^