fgetwc - Man Page

read a wide character from a FILE stream


#include <stdio.h>
#include <wchar.h>

wint_t fgetwc(FILE *stream);
wint_t getwc(FILE *stream);


The fgetwc() function is the wide-character equivalent of the fgetc(3) function. It reads a wide character from stream and returns it. If the end of stream is reached, or if ferror(stream) becomes true, it returns WEOF. If a wide-character conversion error occurs, it sets errno to EILSEQ and returns WEOF.

The getwc() function or macro functions identically to fgetwc(). It may be implemented as a macro, and may evaluate its argument more than once. There is no reason ever to use it.

For nonlocking counterparts, see unlocked_stdio(3).

Return Value

On success, fgetwc() returns the next wide-character from the stream. Otherwise, WEOF is returned, and errno is set to indicate the error.


Apart from the usual ones, there is


The data obtained from the input stream does not form a valid character.


For an explanation of the terms used in this section, see attributes(7).

fgetwc(), getwc()Thread safetyMT-Safe

Conforming to

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


The behavior of fgetwc() 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 fgetwc() will actually read a multibyte sequence from the stream and then convert it to a wide character.

See Also

fgetws(3), fputwc(3), ungetwc(3), unlocked_stdio(3)


This page is part of release 5.13 of the Linux 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/.

Referenced By

fgetc(3), fgetws(3), fputwc(3), gets(3), getwchar(3), ungetwc(3).

The man page getwc(3) is an alias of fgetwc(3).

2021-03-22 GNU Linux Programmer's Manual