NAME
fgetwc, getwc,
getwchar —
get next wide character from input
stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
#include <wchar.h>
wint_t
fgetwc(FILE
*stream);
wint_t
getwc(FILE
*stream);
wint_t
getwchar(void);
DESCRIPTION
The
fgetwc()
function obtains the next input wide character (if present) from the stream
pointed at by stream, or the next character pushed
back on the stream via ungetwc(3).
The
getwc()
function acts essentially identically to
fgetwc().
The
getwchar()
function is equivalent to getwc() with the argument
stdin.
Extended locale versions of these functions are documented in getwc_l(3). See xlocale(3) for more information.
RETURN VALUES
If successful, these routines return the next wide character from
the stream. If the stream is at end-of-file or a read
error occurs, the routines return WEOF. The routines
feof(3) and
ferror(3)
must be used to distinguish between end-of-file and error. If an error
occurs, the global variable errno is set to indicate
the error. The end-of-file condition is remembered, even on a terminal, and
all subsequent attempts to read will return WEOF
until the condition is cleared with
clearerr(3).
SEE ALSO
ferror(3), fopen(3), fread(3), getc(3), getwc_l, putwc(3), stdio(3), ungetwc(3)
STANDARDS
The fgetwc(),
getwc(), and getwchar()
functions conform to ISO/IEC 9899:1999
(“ISO C99”).