.TH LIBSIMPLE_UNLIST 3 libsimple
.SH NAME
libsimple_unlist \- remove item for array and keep order

.SH SYNOPSIS
.nf
#include <libsimple.h>

void libsimple_unlist(void *\fIlist\fP, size_t \fIi\fP, size_t *\fInp\fP, size_t \fIwidth\fP);
void LIBSIMPLE_UNLIST(\fItype\fP *\fIlist\fP, size_t \fIi\fP, size_t *\fInp\fP);

#ifndef unlist
# define unlist libsimple_unlist
#endif
#ifndef UNLIST
# define UNLIST LIBSIMPLE_UNLIST
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_unlist ()
function removes the
.IR i th
element from
.IR list ,
and pushes up all following elements one step, so
next element take the removed elements position. The
.I width
parameter shall be the size of each element, in bytes,
.RI ( sizeof(*list)
in all sane circumstances).
.I np
shall be a pointer to the number of elements stored in
.IR list ,
.I *np
will be set to
.IR *np-1 .
The function assumes that
.IR i<*np .
.PP
.BR LIBSIMPLE_UNLIST ()
is a macro-wrapper for the
.BR libsimple_unlist ()
function which does not have the parameter
.IR width ,
instead it is inferred from the type of
.IR list ;
as such,
.I type
must be a complete, non-void type.

.SH RETURN VALUE
None.

.SH ERRORS
The
.BR libsimple_unlist ()
and
.BR LIBSIMPLE_UNLIST ()
functions cannot fail.

.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface	Attribute	Value
T{
.BR libsimple_unlist (),
.br
.BR LIBSIMPLE_UNLIST ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_unlist (),
.br
.BR LIBSIMPLE_UNLIST ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_unlist (),
.br
.BR LIBSIMPLE_UNLIST ()
T}	Async-cancel safety	AC-Safe
.TE

.SH EXAMPLES
None.

.SH APPLICATION USAGE
None.

.SH RATIONALE
None.

.SH FUTURE DIRECTIONS
None.

.SH NOTES
None.

.SH HISTORY
libsimple 1.0

.SH BUGS
None.

.SH SEE ALSO
.BR memmove (3)