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.TH FGETWS 3  2015-08-08 "GNU" "Linux Programmer's Manual"

.SH NAME

fgetws \- read a wide-character string from a FILE stream

.SH SYNOPSIS

.nf

.B #include <wchar.h>

.PP

.BI "wchar_t *fgetws(wchar_t *" ws ", int " n ", FILE *" stream );

.fi

.SH DESCRIPTION

The

.BR fgetws ()

function is the wide-character equivalent

of the

.BR fgets (3)

function.

It reads a string of at most \fIn\-1\fP wide characters into the

wide-character array pointed to by \fIws\fP,

and adds a terminating null wide character (L\(aq\\0\(aq).

It stops reading wide characters after it has encountered and

stored a newline wide character.

It also stops when end of stream is reached.

.PP

The programmer must ensure that there is room for at least \fIn\fP wide

characters at \fIws\fP.

.PP

For a nonlocking counterpart, see

.BR unlocked_stdio (3).

.SH RETURN VALUE

The

.BR fgetws ()

function, if successful, returns \fIws\fP.

If end of stream

was already reached or if an error occurred, it returns NULL.

.SH ATTRIBUTES

For an explanation of the terms used in this section, see

.BR attributes (7).

.TS

allbox;

lb lb lb

l l l.

Interface	Attribute	Value

T{

.BR fgetws ()

T}	Thread safety	MT-Safe

.TE

.SH CONFORMING TO

POSIX.1-2001, POSIX.1-2008, C99.

.SH NOTES

The behavior of

.BR fgetws ()

depends on the

.B LC_CTYPE

category of the

current locale.

.PP

In the absence of additional information passed to the

.BR fopen (3)

call, it is

reasonable to expect that

.BR fgetws ()

will actually read a multibyte string

from the stream and then convert it to a wide-character string.

.PP

This function is unreliable,

because it does not permit to deal properly with

null wide characters that may be present in the input.

.SH SEE ALSO

.BR fgetwc (3),

.BR unlocked_stdio (3)

.SH COLOPHON

This page is part of release 4.15 of the Linux

.I man-pages

project.

A description of the project,

information about reporting bugs,

and the latest version of this page,

can be found at

\%https://www.kernel.org/doc/man\-pages/.