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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "WCTOMB" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" wctomb 
+.SH NAME
+wctomb \- convert a wide-character code to a character
+.SH SYNOPSIS
+.LP
+\fB#include <stdlib.h>
+.br
+.sp
+int wctomb(char *\fP\fIs\fP\fB, wchar_t\fP \fIwchar\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIwctomb\fP() function shall determine the number of bytes needed
+to represent the character corresponding to the
+wide-character code whose value is \fIwchar\fP (including any change
+in the shift state). It shall store the character
+representation (possibly multiple bytes and any special bytes to change
+shift state) in the array object pointed to by \fIs\fP (if
+\fIs\fP is not a null pointer). At most {MB_CUR_MAX} bytes shall be
+stored. If \fIwchar\fP is 0, a null byte shall be stored,
+preceded by any shift sequence needed to restore the initial shift
+state, and \fIwctomb\fP() shall be left in the initial shift
+state.
+.LP
+The
+behavior of this function is affected by the \fILC_CTYPE\fP category
+of the current locale. For a state-dependent encoding, this
+function shall be placed into its initial state by a call for which
+its character pointer argument, \fIs\fP, is a null pointer.
+Subsequent calls with \fIs\fP as other than a null pointer shall cause
+the internal state of the function to be altered as
+necessary. A call with \fIs\fP as a null pointer shall cause this
+function to return a non-zero value if encodings have state
+dependency, and 0 otherwise. Changing the \fILC_CTYPE\fP category
+causes the shift state of this function to be unspecified.
+.LP
+The \fIwctomb\fP() function need not be reentrant. A function that
+is not required to be reentrant is not required to be
+thread-safe. 
+.LP
+The implementation shall behave as if no function defined in this
+volume of IEEE\ Std\ 1003.1-2001 calls
+\fIwctomb\fP().
+.SH RETURN VALUE
+.LP
+If \fIs\fP is a null pointer, \fIwctomb\fP() shall return a non-zero
+or 0 value, if character encodings, respectively, do or
+do not have state-dependent encodings. If \fIs\fP is not a null pointer,
+\fIwctomb\fP() shall return -1 if the value of
+\fIwchar\fP does not correspond to a valid character, or return the
+number of bytes that constitute the character corresponding to
+the value of \fIwchar\fP.
+.LP
+In no case shall the value returned be greater than the value of the
+{MB_CUR_MAX} macro.
+.SH ERRORS
+.LP
+No errors are defined.
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fImblen\fP() , \fImbtowc\fP() , \fImbstowcs\fP() , \fIwcstombs\fP()
+, the Base Definitions volume of
+IEEE\ Std\ 1003.1-2001, \fI<stdlib.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 .