IHYPRESS PROGRAMMING

Tutorials and C programs with code and output for beginners

<11.04>

/* a binary file of integers */ #include <stdio.h> int main(void) { FILE* binaryfile; int i, n, array[10]; binaryfile = fopen("values.bin", "wb"); for (i = 2; i <= 500; i += 2) fwrite (&i, sizeof(int), 1, binaryfile); fclose(binaryfile); binaryfile = fopen("values.bin", "rb"); /* eof-controlled loop for binary files */ while (fread (&n, sizeof(int), 1, binaryfile) == 1) printf ("%d ", n); /* can use rewind instead of fclose+fopen */ rewind (binaryfile); /* filling array size 10 and printing it */ fread (&array, sizeof(int), 10, binaryfile); for (i=0; i<10; ++i) printf ("%4d", array[i]); fclose(binaryfile); return (0); }

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