NAME
insque, remque - insert/remove an item from a queue
SYNOPSIS
#include <search.h>
I void insque(void * elem , void * prev );
I void remque(void * elem );
DESCRIPTION
R insque ()
and
R remque ()
are functions for manipulating
doubly-linked lists.
Each element in the list is a structure of
which the first two structure elements are a forward and a
backward pointer.
R insque ()
inserts the element pointed to by elem
immediately after the element pointed to by prev, which must
not be NULL.
R remque ()
removes the element pointed to by elem from the
doubly-linked list.
CONFORMING TO
POSIX.1-2001
NOTES
Traditionally (e.g., SunOS, Linux libc 4,5) the parameters of these
functions were of type
struct qelem *, where the struct
is defined as
struct qelem {
struct qelem *q_forw;
struct qelem *q_back;
char q_data[1];
};
This is still what you will get if
_GNU_SOURCE
is defined before
including
<search.h>.
The location of the prototypes for these functions differs among several
versions of UNIX.
The above is the POSIX version.
Some systems place them in
<string.h>.
Linux libc4,5 placed them
in
<stdlib.h>.
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