Unformatted I/O

#include <stdio.h>

main()

{

float v[5], r[5];

FILE *fp;

v[0] = 13.15;

v[1] = 1.0;

fp = fopen("test.dat", "wb");

fwrite(v, sizeof(float), 2, fp);

fclose(fp);

fp = fopen("test.dat", "rb");

fread(r, sizeof(float), 2, fp);

fclose(fp);

printf("%f %f\n", r[0], r[1]);

}

The print out is:

13.150000 1.000000

In the file text.dat we have

ffRA… which is the characters for hexadecimal number 66 66 52 41, which in turn is the IEEE representation of 13.15.

This is program pg465.c

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