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'\" t
.\" Copyright, the authors of the Linux man-pages project
.\"
.\" SPDX-License-Identifier: GPL-2.0-or-later
.\"
.TH mbsinit 3 2025-05-17 "Linux man-pages (unreleased)"
.SH NAME
mbsinit
\-
test for initial shift state
.SH LIBRARY
Standard C library
.RI ( libc ,\~ \-lc )
.SH SYNOPSIS
.nf
.B #include <wchar.h>
.P
.BI "int mbsinit(const mbstate_t *" ps );
.fi
.SH DESCRIPTION
The function
.BR mbsinit ()
tests whether
.I *ps
corresponds to an
initial state.
.SH RETURN VALUE
.BR mbsinit ()
returns nonzero if
.I *ps
is an initial state, or if
.I ps
is NULL.
Otherwise, it returns 0.
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lbx lb lb
l l l.
Interface Attribute Value
T{
.na
.nh
.BR mbsinit ()
T} Thread safety MT-Safe
.TE
.SH STANDARDS
C11, POSIX.1-2008.
.SH HISTORY
POSIX.1-2001, C99.
.SH NOTES
The behavior of
.BR mbsinit ()
depends on the
.B LC_CTYPE
category of the
current locale.
.SH SEE ALSO
.BR mbstate_t (3type),
.BR mbrlen (3),
.BR mbrtowc (3),
.BR mbsrtowcs (3),
.BR wcrtomb (3),
.BR wcsrtombs (3)
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