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/* dynvec.c -- dynamically growable vectors
Copyright (C) 1995, 2007-2011 Free Software Foundation, Inc.
Written by Greg McGary <gkm@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdlib.h>
#include <xalloc.h>
#include "dynvec.h"
struct dynvec *
make_dynvec (int n)
{
struct dynvec *dv = xmalloc (sizeof *dv);
dv->dv_vec = xnmalloc (n, sizeof *dv->dv_vec);
dv->dv_capacity = n;
dv->dv_fill = 0;
return dv;
}
void
dynvec_free (struct dynvec *dv)
{
free (dv->dv_vec);
free (dv);
}
void
dynvec_freeze (struct dynvec *dv)
{
if (dv->dv_fill == dv->dv_capacity)
return;
dv->dv_capacity = dv->dv_fill;
dv->dv_vec = xnrealloc (dv->dv_vec, dv->dv_capacity, sizeof *dv->dv_vec);
}
void
dynvec_append (struct dynvec *dv, void *element)
{
if (dv->dv_fill == dv->dv_capacity)
{
dv->dv_capacity *= 2;
dv->dv_vec = xnrealloc (dv->dv_vec, dv->dv_capacity, sizeof *dv->dv_vec);
}
dv->dv_vec[dv->dv_fill++] = element;
}
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