os.h

/*
 Title: Configuration for OS
 Started: Oct 2008
 Last Update: 9 Oct 2008
 Revised: 0
 Program Status: Test mode
 Pipeline: None till date
*/
#ifdef MSWin
	#include<conio.h>
	#define cls system("cls")
#else
	#define cls system("clear")
	
	#include <termios.h>
	#include <unistd.h>
	int getch()
	{
		struct termios oldt,
		newt;
		int ch;
		tcgetattr(STDIN_FILENO, &oldt);
		newt= oldt;
		newt.c_lflag &= ~(ICANON| ECHO);
		tcsetattr(STDIN_FILENO, TCSANOW, &newt);
		ch= getchar();
		tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
		return ch;
	}
#endif