.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
.\"
+.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
.\" 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.
+.\" %%%LICENSE_END
.\"
.\" 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
+.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
.\" ISO/IEC 9899:1999
.\"
-.TH WCTOB 3 1999-07-25 "GNU" "Linux Programmer's Manual"
+.TH WCTOB 3 2017-09-15 "GNU" "Linux Programmer's Manual"
.SH NAME
wctob \- try to represent a wide character as a single byte
.SH SYNOPSIS
.nf
.B #include <wchar.h>
-.sp
+.PP
.BI "int wctob(wint_t " c );
.fi
.SH DESCRIPTION
The
.BR wctob ()
function tests whether
-the multi-byte representation of the
-wide character \fIc\fP, starting in the initial state, consists of a single
+the multibyte representation of the
+wide character
+.IR c ,
+starting in the initial state, consists of a single
byte.
-If so, it is returned as an unsigned char.
+If so, it is returned as an
+.IR "unsigned char" .
.PP
Never use this function.
It cannot help you in writing internationalized
programs.
Internationalized programs must never distinguish single-byte and
-multi-byte characters.
-.SH "RETURN VALUE"
+multibyte characters.
+.SH RETURN VALUE
The
.BR wctob ()
-function returns the single-byte representation of \fIc\fP,
-if it exists, of EOF otherwise.
-.SH "CONFORMING TO"
-C99.
+function returns the single-byte representation of
+.IR c ,
+if it exists, of
+.B EOF
+otherwise.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR wctob ()
+T} Thread safety MT-Safe
+.TE
+.sp 1
+.SH CONFORMING TO
+POSIX.1-2001, POSIX.1-2008, C99.
.SH NOTES
The behavior of
.BR wctob ()
-depends on the LC_CTYPE category of the
+depends on the
+.B LC_CTYPE
+category of the
current locale.
.PP
This function should never be used.
Internationalized programs must never
-distinguish single-byte and multi-byte characters.
-Use the function
+distinguish single-byte and multibyte characters.
+Use either
.BR wctomb (3)
+or the thread-safe
+.BR wcrtomb (3)
instead.
-.SH "SEE ALSO"
+.SH SEE ALSO
+.BR btowc (3),
+.BR wcrtomb (3),
.BR wctomb (3)