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FGETWC (3) | C library functions | Unix Manual Pages | :man

NAME

fgetwc, getwc - read a wide character from a FILE stream

CONTENTS

Synopsis
Description
Errors
Notes

SYNOPSIS



#include <stdio.h>




#include <wchar.h>



"wint_t fgetwc(FILE *"stream);

"wint_t getwc(FILE *"stream);

DESCRIPTION

The fgetwc function is the wide-character equivalent of the fgetc 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 non-locking counterparts, see unlocked_stdio(3).

"RETURN VALUE"

The fgetwc function returns the next wide-character from the stream, or WEOF.

ERRORS

Apart from the usual ones, there is -->
EILSEQ The data obtained from the input stream does not form a valid character.

"CONFORMING TO"

ISO/ANSI C, UNIX98

NOTES

The behaviour of fgetwc depends on the LC_CTYPE category of the current locale.

In the absence of additional information passed to the fopen 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"

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


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