Revision 914397e7fc1e1e7c87947a490336eed2142e9cf2 authored by Damien Doligez on 08 March 2012, 15:19:58 UTC, committed by Damien Doligez on 08 March 2012, 15:19:58 UTC
git-svn-id: http://caml.inria.fr/svn/ocaml/version/3.12@12205 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
1 parent d991ff1
gc.h
/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Damien Doligez, projet Para, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../LICENSE. */
/* */
/***********************************************************************/
/* $Id$ */
#ifndef CAML_GC_H
#define CAML_GC_H
#include "mlvalues.h"
#define Caml_white (0 << 8)
#define Caml_gray (1 << 8)
#define Caml_blue (2 << 8)
#define Caml_black (3 << 8)
#define Color_hd(hd) ((color_t) ((hd) & Caml_black))
#define Color_hp(hp) (Color_hd (Hd_hp (hp)))
#define Color_val(val) (Color_hd (Hd_val (val)))
#define Is_white_hd(hd) (Color_hd (hd) == Caml_white)
#define Is_gray_hd(hd) (Color_hd (hd) == Caml_gray)
#define Is_blue_hd(hd) (Color_hd (hd) == Caml_blue)
#define Is_black_hd(hd) (Color_hd (hd) == Caml_black)
#define Whitehd_hd(hd) (((hd) & ~Caml_black)/*| Caml_white*/)
#define Grayhd_hd(hd) (((hd) & ~Caml_black) | Caml_gray)
#define Blackhd_hd(hd) (((hd)/*& ~Caml_black*/)| Caml_black)
#define Bluehd_hd(hd) (((hd) & ~Caml_black) | Caml_blue)
/* This depends on the layout of the header. See [mlvalues.h]. */
#define Make_header(wosize, tag, color) \
(/*Assert ((wosize) <= Max_wosize),*/ \
((header_t) (((header_t) (wosize) << 10) \
+ (color) \
+ (tag_t) (tag))) \
)
#define Is_white_val(val) (Color_val(val) == Caml_white)
#define Is_gray_val(val) (Color_val(val) == Caml_gray)
#define Is_blue_val(val) (Color_val(val) == Caml_blue)
#define Is_black_val(val) (Color_val(val) == Caml_black)
/* For extern.c */
#define Colornum_hd(hd) ((color_t) (((hd) >> 8) & 3))
#define Coloredhd_hd(hd,colnum) (((hd) & ~Caml_black) | ((colnum) << 8))
#endif /* CAML_GC_H */
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