MBSINIT(P) POSIX Programmer's Manual MBSINIT(P)
mbsinit - determine conversion object status
int mbsinit(const mbstate_t *ps);
If ps is not a null pointer, the mbsinit() function shall determine whether the object
pointed to by ps describes an initial conversion state.
The mbsinit() function shall return non-zero if ps is a null pointer, or if the pointed-to
object describes an initial conversion state; otherwise, it shall return zero.
If an mbstate_t object is altered by any of the functions described as "restartable", and
is then used with a different character sequence, or in the other conversion direction, or
with a different LC_CTYPE category setting than on earlier function calls, the behavior is
No errors are defined.
The following sections are informative.
The mbstate_t object is used to describe the current conversion state from a particular
character sequence to a wide-character sequence (or vice versa) under the rules of a par-
ticular setting of the LC_CTYPE category of the current locale.
The initial conversion state corresponds, for a conversion in either direction, to the
beginning of a new character sequence in the initial shift state. A zero valued mbstate_t
object is at least one way to describe an initial conversion state. A zero valued
mbstate_t object can be used to initiate conversion involving any character sequence, in
any LC_CTYPE category setting.
mbrlen() , mbrtowc() , wcrtomb() , mbsrtowcs() , wcsrtombs() , the Base Definitions volume
of IEEE Std 1003.1-2001, <wchar.h>
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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 MBSINIT(P)