| 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. |