wcwidth - determine columns needed for a wide character

The wcwidth() function returns the number of columns needed to represent the wide character c.
If c is a printable wide character, the value is at least 0.
If c is null wide character L'\0', the value is 0.
Otherwise, -1 is returned.

Return Value

The wcwidth() function returns the number of column positions for c.

Notes

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

See example

See also: https://github.com/ClnViewer/LibWchar2/blob/master/test/test_wcwidth.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