02-21-2010
Thank you ppl
Thank u for ur time ppl. made a mistake at other part of prog so null was being to ptr...
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FREAD(3S) FREAD(3S)
NAME
fread, fwrite - buffered binary input/output
SYNOPSIS
#include <stdio.h>
fread(ptr, sizeof(*ptr), nitems, stream)
FILE *stream;
fwrite(ptr, sizeof(*ptr), nitems, stream)
FILE *stream;
DESCRIPTION
Fread reads, into a block beginning at ptr, nitems of data of the type of *ptr from the named input stream. It returns the number of items
actually read.
If stream is stdin and the standard output is line buffered, then any partial output line will be flushed before any call to read(2) to
satisfy the fread.
Fwrite appends at most nitems of data of the type of *ptr beginning at ptr to the named output stream. It returns the number of items
actually written.
SEE ALSO
read(2), write(2), fopen(3S), getc(3S), putc(3S), gets(3S), puts(3S), printf(3S), scanf(3S)
DIAGNOSTICS
Fread and fwrite return 0 upon end of file or error.
4th Berkeley Distribution May 15, 1985 FREAD(3S)