// system.cpp - Demonstrating system calls

/*
Microsoft Visual C++ 5.0 (Win32 Console App) example.
  
Execute a command. The system function passes command to the 
command interpreter, which executes the string as an operating-system 
command. 

include file: <stdlib.h>

syntax:  
   int system( const char *command );
*/

#include <stdlib.h>   // for system()
#include <conio.h>    // for getch()
#include <iostream.h>

void main()
{
  // The following does not appear, because the output
  // stream is not flushed before calling system:

  //cout << "Press any key to clear the screen:";
 
  // The following works correctly:
  cout << "Press any key to clear the screen:" << endl;
  getch();

  system("cls");

  cout << "Here is some more output." << endl;


}