iswcntrl manual

iswcntrl - test for control wide character

The iswcntrl() function is the wide-character equivalent of the iscntrl(3) function. It tests whether wc is a wide character belonging to the wide-character class cntrl.

The wide-character class cntrl is disjoint from the wide-character class print and therefore also disjoint from its subclasses graph, alpha, upper, lower, digit, xdigit, punct.

For an unsigned char c, iscntrl(c) implies iswcntrl(btowc(c)), but not vice versa.

Return Value

The iswcntrl() function returns nonzero if wc is a wide character belonging to the wide-character class cntrl.
Otherwise, it returns zero.

Notes

The behavior of iswcntrl() depends on the LC_CTYPE category of the current locale.

See example

See also

https://github.com/ClnViewer/LibWchar2/blob/master/test/test_iswcntrl.c

LibWchar2 information

Version

libwchar2 0.0.10

Date

Wed Aug 22 2018

Author

(c) PS 2018-2018

Manual author and license

Copyright

GNU Public License version 2. Manual license details