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+'\" et
+.TH WCSDUP "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.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
+wcsdup
+\(em duplicate a wide-character string
+.SH SYNOPSIS
+.LP
+.nf
+#include <wchar.h>
+.P
+wchar_t *wcsdup(const wchar_t *\fIstring\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIwcsdup\fR()
+function is the wide-character equivalent of the
+\fIstrdup\fR()
+function.
+.P
+The
+\fIwcsdup\fR()
+function shall return a pointer to a new wide-character string,
+allocated as if by a call to
+\fImalloc\fR(),
+which is the duplicate of the wide-character string
+.IR string .
+The returned pointer can be passed to
+\fIfree\fR().
+A null pointer is returned if the new wide-character string cannot be
+created.
+.SH "RETURN VALUE"
+Upon successful completion, the
+\fIwcsdup\fR()
+function shall return a pointer to the newly allocated wide-character
+string. Otherwise, it shall return a null pointer and set
+.IR errno
+to indicate the error.
+.SH ERRORS
+The
+\fIwcsdup\fR()
+function shall fail if:
+.TP
+.BR ENOMEM
+Memory large enough for the duplicate string could not be allocated.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+For functions that allocate memory as if by
+\fImalloc\fR(),
+the application should release such memory when it is no longer
+required by a call to
+\fIfree\fR().
+For
+\fIwcsdup\fR(),
+this is the return value.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIfree\fR\^(\|)",
+.IR "\fIstrdup\fR\^(\|)",
+.IR "\fIwcscpy\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<wchar.h>\fP"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 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 .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .