Linux 2.6 - man page for wcwidth (linux section 3)
|Linux & Unix Commands - Search Man Pages
WCWIDTH(3) Linux Programmer's Manual WCWIDTH(3)
wcwidth - determine columns needed for a wide character
#define _XOPEN_SOURCE /* See feature_test_macros(7) */
int wcwidth(wchar_t c);
The wcwidth() function returns the number of columns needed to represent the wide charac-
ter 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.
The wcwidth() function returns the number of column positions for c.
Multithreading (see pthreads(7))
The wcwidth() function is thread-safe with exceptions. It can be safely used in multi-
threaded applications, as long as setlocale(3) is not called to change the locale.
Note that glibc before 2.2.5 used the prototype
int wcwidth(wint_t c);
The behavior of wcwidth() depends on the LC_CTYPE category of the current locale.
This page is part of release 3.55 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
GNU 2013-11-04 WCWIDTH(3)
All times are GMT -4. The time now is 02:13 PM.