GETWIDTH(3C) Standard C Library Functions GETWIDTH(3C)
NAME
getwidth - get codeset information
SYNOPSIS
#include <euc.h>
#include <getwidth.h>
void getwidth(
eucwidth_t *ptr);
DESCRIPTION
The
getwidth() function reads the character class table for the
current locale to get information on the supplementary codesets.
getwidth() sets this information into the struct
eucwidth_t. This
struct is defined in <
euc.h> and has the following members:
short int _eucw1,_eucw2,_eucw3;
short int _scrw1,_scrw2,_scrw3;
short int _pcw;
char _multibyte;
Codeset width values for supplementary codesets 1, 2, and 3 are set
in
_eucw1,
_eucw2, and
_eucw3, respectively. Screen width values for
supplementary codesets 1, 2, and 3 are set in
_scrw1,
_scrw2, and
_scrw3, respectively.
The width of Extended Unix Code (EUC) Process Code is set in
_pcw.
The
_multibyte entry is set to
1 if multibyte characters are used,
and set to
0 if only single-byte characters are used.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+---------------+-------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-------------------------+
|MT-Level | MT-Safe with exceptions |
+---------------+-------------------------+
SEE ALSO
euclen(3C),
setlocale(3C),
attributes(7)NOTES
The
getwidth() function can be used safely in a multithreaded
application, as long as
setlocale(3C) is not being called to change
the locale.
The
getwidth() function will only work with
EUC locales.
December 20, 1996 GETWIDTH(3C)
