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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "WCSTOMBS" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" wcstombs 
+.SH NAME
+wcstombs \- convert a wide-character string to a character string
+.SH SYNOPSIS
+.LP
+\fB#include <stdlib.h>
+.br
+.sp
+size_t wcstombs(char *restrict\fP \fIs\fP\fB, const wchar_t *restrict\fP
+\fIpwcs\fP\fB,
+.br
+\ \ \ \ \ \  size_t\fP \fIn\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIwcstombs\fP() function shall convert the sequence of wide-character
+codes that are in the array pointed to by
+\fIpwcs\fP into a sequence of characters that begins in the initial
+shift state and store these characters into the array pointed
+to by \fIs\fP, stopping if a character would exceed the limit of \fIn\fP
+total bytes or if a null byte is stored. Each
+wide-character code shall be converted as if by a call to \fIwctomb\fP(),
+except that the
+shift state of \fIwctomb\fP() shall not be affected.
+.LP
+The behavior of this function shall be affected by the \fILC_CTYPE\fP
+category of the current locale.
+.LP
+No more than \fIn\fP bytes shall be modified in the array pointed
+to by \fIs\fP. If copying takes place between objects that
+overlap, the behavior is undefined.   \ If \fIs\fP is a null pointer,
+\fIwcstombs\fP() shall return the length required to convert
+the entire array regardless of the value of \fIn\fP, but no values
+are stored.
+.LP
+The \fIwcstombs\fP() function need not be reentrant. A function that
+is not required to be reentrant is not required to be
+thread-safe. 
+.SH RETURN VALUE
+.LP
+If a wide-character code is encountered that does not correspond to
+a valid character (of one or more bytes each),
+\fIwcstombs\fP() shall return (\fBsize_t\fP)-1. Otherwise, \fIwcstombs\fP()
+shall return the number of bytes stored in the
+character array, not including any terminating null byte. The array
+shall not be null-terminated if the value returned is
+\fIn\fP.
+.SH ERRORS
+.LP
+The \fIwcstombs\fP() function may fail if:
+.TP 7
+.B EILSEQ
+A
+wide-character code does not correspond to a valid character. 
+.sp
+.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() , \fIwctomb\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 .