[unix-history] / usr / man / man3 / fread.3s

.TH FREAD 3S 
.SH NAME
fread, fwrite \- buffered binary input/output
.SH SYNOPSIS
.B #include <stdio.h>
.PP
.B fread(ptr, sizeof(*ptr), nitems, stream)
.br
.SM
.B FILE
.B *stream;
.PP
.B fwrite(ptr, sizeof(*ptr), nitems, stream)
.br
.SM
.B FILE
.B *stream;
.SH DESCRIPTION
.I Fread
reads, into a block beginning at
.I ptr,
.I nitems
of data of the type of
.I *ptr
from the named input
.IR stream .
It returns the number of items actually read.
.PP
.I Fwrite
appends at most
.I nitems
of data of the type of
.I *ptr
beginning at
.I ptr
to the named output
.IR stream .
It returns the number of items actually written.
.SH "SEE ALSO"
read(2), write(2),
fopen(3),
getc(3), putc(3),
gets(3), puts(3),
printf(3), scanf(3)
.SH DIAGNOSTICS
.I Fread
and
.I fwrite
return
0
upon end of file or error.
Commit	Line	Data
e6817382 BJ	1	.TH FREAD 3S
	2	.SH NAME
	3	fread, fwrite \- buffered binary input/output
	4	.SH SYNOPSIS
	5	.B #include <stdio.h>
	6	.PP
	7	.B fread(ptr, sizeof(*ptr), nitems, stream)
	8	.br
	9	.SM
	10	.B FILE
	11	.B *stream;
	12	.PP
	13	.B fwrite(ptr, sizeof(*ptr), nitems, stream)
	14	.br
	15	.SM
	16	.B FILE
	17	.B *stream;
	18	.SH DESCRIPTION
	19	.I Fread
	20	reads, into a block beginning at
	21	.I ptr,
	22	.I nitems
	23	of data of the type of
	24	.I *ptr
	25	from the named input
	26	.IR stream .
	27	It returns the number of items actually read.
	28	.PP
	29	.I Fwrite
	30	appends at most
	31	.I nitems
	32	of data of the type of
	33	.I *ptr
	34	beginning at
	35	.I ptr
	36	to the named output
	37	.IR stream .
	38	It returns the number of items actually written.
	39	.SH "SEE ALSO"
	40	read(2), write(2),
	41	fopen(3),
	42	getc(3), putc(3),
	43	gets(3), puts(3),
	44	printf(3), scanf(3)
	45	.SH DIAGNOSTICS
	46	.I Fread
	47	and
	48	.I fwrite
	49	return
	50	0
	51	upon end of file or error.