CentOS 7.0 - man page for getwchar (centos section 3)
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GETWCHAR(3) Linux Programmer's Manual GETWCHAR(3)
getwchar - read a wide character from standard input
The 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 nonlocking counterpart, see unlocked_stdio(3).
The getwchar() function returns the next wide-character from standard input, or WEOF.
The behavior of getwchar() depends on the LC_CTYPE category of the current locale.
It is reasonable to expect that getwchar() will actually read a multibyte sequence from
standard input and then convert it to a wide character.
This page is part of release 3.53 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
GNU 1999-07-25 GETWCHAR(3)
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