fgetws — read a wide-character string from a FILE stream
#include <wchar.h>
wchar_t *fgetws( |
wchar_t *ws, |
int n, | |
FILE *stream) ; |
The fgetws
() function is the
wide-character equivalent of the fgets(3) function. It reads
a string of at most n−1
wide characters
into the wide-character array pointed to by ws
, and adds a terminating
L'\0' character. It stops reading wide characters after it
has encountered and stored a newline wide character. It also
stops when end of stream is reached.
The programmer must ensure that there is room for at least
n
wide characters at
ws
.
For a nonlocking counterpart, see unlocked_stdio(3).
The fgetws
() function, if
successful, returns ws
. If end of stream was
already reached or if an error occurred, it returns NULL.
The behavior of fgetws
()
depends on the LC_CTYPE
category of the current locale.
In the absence of additional information passed to the
fopen(3) call, it is
reasonable to expect that fgetws
() will actually read a multibyte
string from the stream and then convert it to a
wide-character string.
This function is unreliable, because it does not permit to deal properly with null wide characters that may be present in the input.
This page is part of release 3.24 of the Linux man-pages
project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
Copyright (c) Bruno Haible <haibleclisp.cons.org> This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. References consulted: GNU glibc-2 source code and manual Dinkumware C library reference http://www.dinkumware.com/ OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html ISO/IEC 9899:1999 Modified Tue Oct 16 23:18:40 BST 2001 by John Levon <mozcompsoc.man.ac.uk> |