| freopen |
(String path, String mode, Stream stream) |
yoix.stdio |
| |
Closes
stream,
and then attaches it to the source named by
path
with access determined by
mode,
which should be one of:
"r" |
open for reading
| "w" |
create or truncate for writing
| "a" |
append; open for writing at the end of file, or create for writing
| "r+" |
open for update, which allows reading and writing
| "w+" |
truncate or create for update
|
freopen
returns
stream,
or
NULL
if the re-open failed.
In either case, the original
stream
is flushed and closed.
| |
| Example: |
On a UNIX-like system the program,
import yoix.stdio.*;
String line[1024];
if (freopen("/etc/passwd", "r", stdin) != NULL) {
while (fgets(line, 1024, stdin) != NULL)
fputs(line, stdout);
}
copies the system password file to standard output.
| | |
| Return: |
Stream
| | |
| See Also: |
access,
close,
fclose,
fflush,
fopen,
open,
reopen,
stat,
unlink
|
|
Yoix is a registered trademark of AT&T Inc.
|
