diff options
Diffstat (limited to 'man-pages-posix-2003/man3p/wcwidth.3p')
-rw-r--r-- | man-pages-posix-2003/man3p/wcwidth.3p | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/man-pages-posix-2003/man3p/wcwidth.3p b/man-pages-posix-2003/man3p/wcwidth.3p new file mode 100644 index 0000000..5ecd6ad --- /dev/null +++ b/man-pages-posix-2003/man3p/wcwidth.3p @@ -0,0 +1,66 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "WCWIDTH" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" wcwidth +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.SH NAME +wcwidth \- number of column positions of a wide-character code +.SH SYNOPSIS +.LP +\fB#include <wchar.h> +.br +.sp +int wcwidth(wchar_t\fP \fIwc\fP\fB); \fP +\fB +.br +\fP +.SH DESCRIPTION +.LP +The \fIwcwidth\fP() function shall determine the number of column +positions required for the wide character \fIwc\fP. The +application shall ensure that the value of \fIwc\fP is a character +representable as a \fBwchar_t\fP, and is a wide-character code +corresponding to a valid character in the current locale. +.SH RETURN VALUE +.LP +The \fIwcwidth\fP() function shall either return 0 (if \fIwc\fP is +a null wide-character code), or return the number of column +positions to be occupied by the wide-character code \fIwc\fP, or return +-1 (if \fIwc\fP does not correspond to a printable +wide-character code). +.SH ERRORS +.LP +No errors are defined. +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.LP +None. +.SH APPLICATION USAGE +.LP +This function was removed from the final ISO/IEC\ 9899:1990/Amendment +1:1995 (E), and the return value for a non-printable +wide character is not specified. +.SH RATIONALE +.LP +None. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fIwcswidth\fP(), the Base Definitions volume of IEEE\ Std\ 1003.1-2001, +\fI<wchar.h>\fP +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. In the +event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . |