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+'\" et
+.TH WCSLEN "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
+wcslen, wcsnlen
+\(em get length of a fixed-sized wide-character string
+.SH SYNOPSIS
+.LP
+.nf
+#include <wchar.h>
+.P
+size_t wcslen(const wchar_t *\fIws\fP);
+size_t wcsnlen(const wchar_t *\fIws\fP, size_t \fImaxlen\fP);
+.fi
+.SH DESCRIPTION
+For
+\fIwcslen\fR():
+The functionality described on this reference page is aligned with the
+ISO\ C standard. Any conflict between the requirements described here and the
+ISO\ C standard is unintentional. This volume of POSIX.1\(hy2017 defers to the ISO\ C standard.
+.P
+The
+\fIwcslen\fR()
+function shall compute the number of wide-character codes in the
+wide-character string to which
+.IR ws
+points, not including the terminating null wide-character code.
+.P
+The
+\fIwcsnlen\fR()
+function shall compute the smaller of the number of wide characters in
+the array to which
+.IR ws
+points, not including any terminating null wide-character code, and the
+value of
+.IR maxlen .
+The
+\fIwcsnlen\fR()
+function shall never examine more than the first
+.IR maxlen
+characters of the wide-character array pointed to by
+.IR ws .
+.SH "RETURN VALUE"
+The
+\fIwcslen\fR()
+function shall return the length of
+.IR ws .
+.P
+The
+\fIwcsnlen\fR()
+function shall return the number of wide characters preceding the
+first null wide-character code in the array to which
+.IR ws
+points, if
+.IR ws
+contains a null wide-character code within the first
+.IR maxlen
+wide characters; otherwise, it shall return
+.IR maxlen .
+.P
+No return values are reserved to indicate an error.
+.SH ERRORS
+No errors are defined.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+None.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIstrlen\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 .