Flashnux

GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 5.4

wcwidth(3)
WCWIDTH

WCWIDTH

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
SEE ALSO
NOTES

NAME

wcwidth − determine columns needed for a wide character

SYNOPSIS

#include <wchar.h>

int wcwidth(wchar_t c);

DESCRIPTION

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 L’\0’, the value is 0. Otherwise −1 is returned.

RETURN VALUE

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

CONFORMING TO

C99.

Note that glibc before 2.2.5 used the prototype
int wcwidth(wint_t c);

SEE ALSO

iswprint(3), wcswidth(3)

NOTES

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

wcwidth(3)