#include<stdio.h>
#include<fcntl.h>


int main(){
	int flag = O_CREAT;
	printf("O_CREAT is 0x%x\n", flag);

	// Set a flag to true
	flag |= O_RDWR;
	printf("After setting O_RDWR, flag = %d\n", flag);

	// Check to see if O_CREAT is set
	if(flag & O_CREAT){
		printf("O_CREAT is set\n");
	}

	// Set a O_CREAT to false
	flag &= ~O_CREAT;

	// Check to see if O_CREAT is not set
	if(!(flag & O_CREAT)){
		printf("O_CREAT is not set\n");
	}



	// open("filename", create if it doesn't exist, open read/write, truncate if it exists)

}