GETWCHARSection: Linux Programmer's Manual (3)
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NAMEgetwchar - read a wide character from standard input
#include <wchar.h> wint_t getwchar(void);
DESCRIPTIONThe getwchar() function is the wide-character equivalent of the getchar(3) function. It reads a wide character from stdin and returns it. If the end of stream is reached, or if ferror(stdin) becomes true, it returns WEOF. If a wide-character conversion error occurs, it sets errno to EILSEQ and returns WEOF.
For a non-locking counterpart, see unlocked_stdio(3).
RETURN VALUEThe getwchar() function returns the next wide-character from standard input, or WEOF.
NOTESThe behavior of getwchar() depends on the LC_CTYPE category of the current locale.
SEE ALSOfgetwc(3), unlocked_stdio(3)
COLOPHONThis page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.