/* 
 * Extremely simple example of writing to a binary file.
 */
#include <stdio.h>

int main(void) {
	FILE * dfile = fopen("data.dat", "w");
	if (dfile == NULL) { puts("cannot open output file"); return 1; }
	long n[] = { 1, 2, 3, 4 };
	double d = 1.25;
	fwrite(n, sizeof(n[0]), sizeof(n)/sizeof(n[0]), dfile);
	fwrite(&d, sizeof(d), 1, dfile);
	fclose(dfile);
	return 0;
}