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wcwidth(3c)

wcwidth(3C)              Standard C Library Functions              wcwidth(3C)

NAME
       wcwidth - number of column positions of a wide-character code

SYNOPSIS
       #include <wchar.h>

       int wcwidth(wchar_t wc);

DESCRIPTION
       The  wcwidth()  function  determines the number of column positions re‐
       quired for the wide character wc. The value of wc must be  a  character
       representable  as  a  wchar_t, and must be a wide-character code corre‐
       sponding to a valid character in the current locale.

RETURN VALUES
       The wcwidth() function either returns 0 (if wc is a null wide-character
       code), or returns the number of column positions to be occupied by  the
       wide-character  code  wc, or returns −1 (if wc does not correspond to a
       printing wide-character code).

ERRORS
       No errors are defined.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ CSIEnabled _ Interface StabilityCommitted _ MT-LevelMT-
       Safe _ StandardSee standards(7).


SEE ALSO
       setlocale(3C), wcswidth(3C), attributes(7), standards(7)


       Handling Characters and Character Strings in Internationalizing and Lo‐
       calizing Applications in Oracle Solaris

HISTORY
       The wcwidth() function was added to Solaris in the Solaris 2.4 release.

Oracle Solaris 11.4               25 Nov 2024                      wcwidth(3C)
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