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/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
#include <search.h>
void
insque(struct qelem *e, struct qelem *p)
{
if (!e || !p)
return;
e->q_back = p;
e->q_forw = p->q_forw;
p->q_forw->q_back = e;
p->q_forw = e;
}