FGETWS(3) | Library Functions Manual | FGETWS(3) |
fgetws
—
#include <stdio.h>
#include <wchar.h>
wchar_t *
fgetws
(wchar_t
* restrict ws, int
n, FILE * restrict
fp);
fgetws
() function reads at most one less than the
number of characters specified by n from the given
fp and stores them in the wide-character string
ws. Reading stops when a newline character is found, at
end-of-file or error. The newline, if any, is retained. If any characters are
read and there is no error, a ‘\0
’
character is appended to end the string.
fgetws
() returns
ws. If end-of-file occurs before any characters are
read, fgetws
() returns NULL
and the buffer contents remain unchanged. If an error occurs,
fgetws
() returns NULL
and the
buffer contents are indeterminate. The fgetws
()
function does not distinguish between end-of-file and error, and callers must
use feof(3) and
ferror(3) to determine which
occurred.
EBADF
]EILSEQ
]The function fgetws
() may also fail and
set errno for any of the errors specified for the
routines fflush(3),
fstat(2),
read(2), or
malloc(3).
fgetws
() function conforms to IEEE
Std 1003.1-2001 (“POSIX.1”).
August 6, 2002 | NetBSD 9.0 |