File:  [Research Unix] / researchv9 / libc / stdio / rdwr.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:22:00 2018 UTC (8 years, 1 month ago) by root
Branches: belllabs, MAIN
CVS tags: researchv9-SUN3_old, researchv9-SUN3, HEAD
researchv9-SUN3(old)

/* @(#)rdwr.c	4.1 (Berkeley) 12/21/80 */
#include	<stdio.h>

fread(ptr, size, count, iop)
unsigned size, count;
register char *ptr;
register FILE *iop;
{
	register c;
	unsigned ndone, s;

	ndone = 0;
	if (size)
	for (; ndone<count; ndone++) {
		s = size;
		do {
			if ((c = getc(iop)) >= 0)
				*ptr++ = c;
			else
				return(ndone);
		} while (--s);
	}
	return(ndone);
}

fwrite(ptr, size, count, iop)
unsigned size, count;
register char *ptr;
register FILE *iop;
{
	register unsigned s;
	unsigned ndone;

	ndone = 0;
	if (size)
	for (; ndone<count; ndone++) {
		s = size;
		do {
			putc(*ptr++, iop);
		} while (--s);
		if (ferror(iop))
			break;
	}
	return(ndone);
}

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