/* Libart_LGPL - library of basic graphic primitives
 * Copyright (C) 1998 Raph Levien
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/* Simple macros to set up storage allocation and basic types for libart
   functions. */

#ifndef __ART_MISC_H__
#define __ART_MISC_H__

#include <stdlib.h> /* for malloc, etc. */

#define art_alloc malloc
#define art_free free
#define art_realloc realloc

/* These aren't, strictly speaking, configuration macros, but they're
   damn handy to have around, and may be worth playing with for
   debugging. */
#define art_new(type, n) ((type *)art_alloc ((n) * sizeof(type)))
#define art_renew(p, type, n) ((type *)art_realloc (p, (n) * sizeof(type)))

/* This one must be used carefully - in particular, p and max should
   be variables. They can also be pstruct->el lvalues. */
#define art_expand(p, type, max) p = art_renew (p, type, max <<= 1)

typedef int art_boolean;
#define ART_FALSE 0
#define ART_TRUE 1

/* define pi */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif  /*  M_PI  */

#ifndef M_SQRT2
#define M_SQRT2         1.41421356237309504880  /* sqrt(2) */
#endif  /* M_SQRT2 */

/* These will be true on all platforms I care about. Nonetheless, it
   should be autoconf'ed. */
typedef unsigned char art_u8;
typedef unsigned int art_u32;

void
art_die (const char *fmt, ...);

void
art_warn (const char *fmt, ...);

#endif /* __ART_MISC_H__ */
