fgetwc, getwc - 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.
For nonlocking counterparts, see unlocked_stdio(3).
The fgetwc() function returns the next wide-character from the stream, or WEOF. In the event of an error,
errno is set to indicate the cause.
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 safety||MT-Safe|
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.
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