/* some file I/O (Input/Output) */

#include<stdio.h>

int main()
{

	float	a, b;
	int	c, d;
	FILE	*infile;
	FILE	*outfile;

	/* open the files */
	infile = fopen("04_input_data.txt", "r");
	outfile = fopen("06_output_data.txt", "w"); 

	/* scan in the data */
 	fscanf(infile, "%f", &a);
 	fscanf(infile, "%f", &b);
 	fscanf(infile, "%d", &c);
 	fscanf(infile, "%d", &d);

	/* let the user know how it's going */
	printf("We got a = %f b = %f c = %d d = %d from the input file\n", a, b, c, d);

	/* write the data */
	fprintf(outfile, "%f %f %d %d\n", a, b, c, d); 

	/* remember to close the file */
	fclose(infile);
	fclose(outfile);

}