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/* Simple 'n' stupid dynamic-array module -- include file.
Copyright (C) 1993 Sun Microsystems, Inc.
This file is part of XEmacs.
XEmacs 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 2, or (at your option) any
later version.
XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Synched up with: Not in FSF. */
/* Written by Ben Wing, December 1993. */
#ifndef _XEMACS_DYNARR_H_
#define _XEMACS_DYNARR_H_
#define Dynarr_declare(type) \
type *base; \
int elsize; \
int cur; \
int largest; \
int max
typedef struct dynarr
{
Dynarr_declare (void);
} Dynarr;
void *Dynarr_newf (int elsize);
void Dynarr_resize (void *dy, int size);
void Dynarr_insert_many (void *d, void *el, int len, int start);
void Dynarr_delete_many (void *d, int start, int len);
void Dynarr_free (void *d);
#define Dynarr_new(type) Dynarr_newf (sizeof(* (type *) NULL))
#define Dynarr_at(d, pos) ((d)->base[pos])
#define Dynarr_atp(d, pos) (&Dynarr_at (d, pos))
#define Dynarr_length(d) ((d)->cur)
#define Dynarr_largest(d) ((d)->largest)
#define Dynarr_reset(d) ((d)->cur = 0)
#define Dynarr_add_many(d, el, len) Dynarr_insert_many (d, el, len, (d)->cur)
#define Dynarr_insert_many_at_start(d, el, len) \
Dynarr_insert_many (d, el, len, 0)
#define Dynarr_add(d, el) ( \
(d)->cur >= (d)->max ? Dynarr_resize ((d), (d)->cur+1) : (void) 0, \
((d)->base)[(d)->cur++] = (el), \
(d)->cur > (d)->largest ? (d)->largest = (d)->cur : (int) 0)
/* The following defines will get you into real trouble if you aren't
careful. But they can save a lot of execution time when used wisely. */
#define Dynarr_increment(d) ((d)->cur++)
#define Dynarr_set_size(d, n) ((d)->cur = n)
/* Minimum size in elements for dynamic array when resized; default is 32 */
extern int Dynarr_min_size;
#endif /* _XEMACS_DYNARR_H_ */
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