54 lines
2.2 KiB
C
54 lines
2.2 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Damien Doligez, projet Para, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#ifndef _gc_
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#define _gc_
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#include "mlvalues.h"
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#define Caml_white (0 << 8)
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#define Caml_gray (1 << 8)
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#define Caml_blue (2 << 8)
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#define Caml_black (3 << 8)
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#define Color_hd(hd) ((color_t) ((hd) & Caml_black))
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#define Color_hp(hp) Color_hd (Hd_hp (hp))
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#define Color_val(val) (Color_hd (Hd_val (val)))
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#define Is_white_hd(hd) (Color_hd (hd) == Caml_white)
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#define Is_gray_hd(hd) (Color_hd (hd) == Caml_gray)
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#define Is_blue_hd(hd) (Color_hd (hd) == Caml_blue)
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#define Is_black_hd(hd) (Color_hd (hd) == Caml_black)
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#define Whitehd_hd(hd) (((hd) & ~Caml_black)/*| Caml_white*/)
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#define Grayhd_hd(hd) (((hd) & ~Caml_black) | Caml_gray)
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#define Blackhd_hd(hd) (((hd)/*& ~Caml_black*/)| Caml_black)
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#define Bluehd_hd(hd) (((hd) & ~Caml_black) | Caml_blue)
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/* This depends on the layout of the header. See [mlvalues.h]. */
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#define Make_header(wosize, tag, color) \
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((header_t) (((header_t) (wosize) << 10) \
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+ (color) \
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+ (tag_t) (tag)))
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#define Is_white_val(val) (Color_val(val) == Caml_white)
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#define Is_gray_val(val) (Color_val(val) == Caml_gray)
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#define Is_blue_val(val) (Color_val(val) == Caml_blue)
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#define Is_black_val(val) (Color_val(val) == Caml_black)
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#endif /* _gc_ */
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