FGETWS(P) POSIX Programmer's Manual FGETWS(P)NAMEfgetws - get a wide-character string from a stream
SYNOPSIS
#include <stdio.h>
#include <wchar.h>
wchar_t *fgetws(wchar_t *restrict ws, int n,
FILE *restrict stream);
DESCRIPTION
The fgetws() function shall read characters from the stream, convert
these to the corresponding wide-character codes, place them in the
wchar_t array pointed to by ws, until n-1 characters are read, or a
<newline> is read, converted, and transferred to ws, or an end-of-file
condition is encountered. The wide-character string, ws, shall then be
terminated with a null wide-character code.
If an error occurs, the resulting value of the file position indicator
for the stream is unspecified.
The fgetws() function may mark the st_atime field of the file associ‐
ated with stream for update. The st_atime field shall be marked for
update by the first successful execution of fgetc(), fgets(), fgetwc(),
fgetws(), fread(), fscanf(), getc(), getchar(), gets(), or scanf()
using stream that returns data not supplied by a prior call to ungetc()
or ungetwc().
RETURN VALUE
Upon successful completion, fgetws() shall return ws. If the stream is
at end-of-file, the end-of-file indicator for the stream shall be set
and fgetws() shall return a null pointer. If a read error occurs, the
error indicator for the stream shall be set, fgetws() shall return a
null pointer, and shall set errno to indicate the error.
ERRORS
Refer to fgetwc() .
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOfopen() , fread() , the Base Definitions volume of
IEEE Std 1003.1-2001, <stdio.h>, <wchar.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 FGETWS(P)
