wcwidth - phpMan

WCWIDTH(3)                 Linux Programmer’s Manual                WCWIDTH(3)



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
       UNIX98, POSIX 1003.1-2001 Note that glibc before 2.2.5 used the prototype
       int wcwidth(wint_t c);

SEE ALSO
       wcswidth(3), iswprint(3)

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



GNU                               1999-07-25                        WCWIDTH(3)

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