diff options
Diffstat (limited to 'man3/wcwidth.3')
| -rw-r--r-- | man3/wcwidth.3 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/man3/wcwidth.3 b/man3/wcwidth.3 new file mode 100644 index 000000000..5d31b95e8 --- /dev/null +++ b/man3/wcwidth.3 @@ -0,0 +1,40 @@ +.\" Copyright (c) Bruno Haible <haible@clisp.cons.org> +.\" +.\" This is free documentation; you can redistribute it and/or +.\" modify it under the terms of the GNU General Public License as +.\" published by the Free Software Foundation; either version 2 of +.\" the License, or (at your option) any later version. +.\" +.\" References consulted: +.\" GNU glibc-2 source code and manual +.\" Dinkumware C library reference http://www.dinkumware.com/ +.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html +.\" +.TH WCWIDTH 3 1999-07-25 "GNU" "Linux Programmer's Manual" +.SH NAME +wcwidth \- determine columns needed for a wide character +.SH SYNOPSIS +.nf +.B #include <wchar.h> +.sp +.BI "int wcwidth(wchar_t " c ); +.fi +.SH DESCRIPTION +The \fBwcwidth\fP function returns the number of columns needed to represent +the wide character \fIc\fP. If \fIc\fP is a printable wide character, the value +is at least 0. If \fIc\fP is L'\\0', the value is 0. Otherwise \-1 is returned. +.SH "RETURN VALUE" +The \fBwcwidth\fP function returns the number of column positions for \fIc\fP. +.SH "CONFORMING TO" +UNIX98, POSIX 1003.1-2001 +Note that glibc before 2.2.5 used the prototype +.br +.nf +.BI "int wcwidth(wint_t " c ); +.fi +.SH "SEE ALSO" +.BR iswprint (3), +.BR wcswidth (3) +.SH NOTES +The behaviour of \fBwcwidth\fP depends on the LC_CTYPE category of the +current locale. |