libguile/vectors.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_VECTORS_H
   4 #define SCM_VECTORS_H
   5
   6 /* Copyright (C) 1995,1996,1998,2000,2001, 2002 Free Software Foundation, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this software; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  21  * Boston, MA 02111-1307 USA
  22  *
  23  * As a special exception, the Free Software Foundation gives permission
  24  * for additional uses of the text contained in its release of GUILE.
  25  *
  26  * The exception is that, if you link the GUILE library with other files
  27  * to produce an executable, this does not by itself cause the
  28  * resulting executable to be covered by the GNU General Public License.
  29  * Your use of that executable is in no way restricted on account of
  30  * linking the GUILE library code into it.
  31  *
  32  * This exception does not however invalidate any other reasons why
  33  * the executable file might be covered by the GNU General Public License.
  34  *
  35  * This exception applies only to the code released by the
  36  * Free Software Foundation under the name GUILE.  If you copy
  37  * code from other Free Software Foundation releases into a copy of
  38  * GUILE, as the General Public License permits, the exception does
  39  * not apply to the code that you add in this way.  To avoid misleading
  40  * anyone as to the status of such modified files, you must delete
  41  * this exception notice from them.
  42  *
  43  * If you write modifications of your own for GUILE, it is your choice
  44  * whether to permit this exception to apply to your modifications.
  45  * If you do not wish that, delete this exception notice.  */
  46
  47 \f
  48
  49 #include "libguile/__scm.h"
  50
  51 \f
  52
  53 #define SCM_VECTORP(x) (!SCM_IMP (x) && (SCM_TYP7S (x) == scm_tc7_vector))
  54 #define SCM_VECTOR_BASE(x) ((scm_t_bits *) SCM_CELL_WORD_1 (x))
  55 #define SCM_SET_VECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
  56 #define SCM_VECTOR_MAX_LENGTH ((1L << 24) - 1)
  57 #define SCM_VECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
  58 #define SCM_MAKE_VECTOR_TAG(l, t)  (((l) << 8) + (t))
  59 #define SCM_SET_VECTOR_LENGTH(v, l, t) (SCM_SET_CELL_WORD_0 ((v), SCM_MAKE_VECTOR_TAG(l, t)))
  60
  61 #define SCM_VELTS(x) ((const SCM *) SCM_CELL_WORD_1 (x))
  62 #define SCM_VELTS_AS_STACKITEMS(x) ((SCM_STACKITEM *) SCM_CELL_WORD_1 (x))
  63 #define SCM_SETVELTS(x, v) (SCM_SET_CELL_WORD_1 ((x), (v)))
  64 #define SCM_VECTOR_REF(x, idx) (((const SCM *) SCM_CELL_WORD_1 (x))[(idx)])
  65 #define SCM_VECTOR_SET(x, idx, val) (((SCM*)SCM_CELL_WORD_1 (x))[(idx)] = (val))
  66
  67 #define SCM_GC_WRITABLE_VELTS(x) ((SCM*) SCM_VELTS(x))
  68
  69 /*
  70   no WB yet.
  71  */
  72 #define SCM_WRITABLE_VELTS(x) ((SCM*) SCM_VELTS(x))
  73
  74 \f
  75 /*
  76   bit vectors
  77  */
  78 #define SCM_BITVEC_REF(a, i) ((SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] & (1L << ((i) % SCM_LONG_BIT))) ? 1 : 0)
  79 #define SCM_BITVEC_SET(a, i) SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] |= (1L << ((i) % SCM_LONG_BIT))
  80 #define SCM_BITVEC_CLR(a, i) SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] &= ~(1L << ((i) % SCM_LONG_BIT))
  81
  82
  83 \f
  84
  85 SCM_API SCM scm_c_make_vector (unsigned long int k, SCM fill);
  86
  87 SCM_API SCM scm_vector_p (SCM x);
  88 SCM_API SCM scm_vector_length (SCM v);
  89 SCM_API SCM scm_vector (SCM l);
  90 SCM_API SCM scm_vector_ref (SCM v, SCM k);
  91 SCM_API SCM scm_vector_set_x (SCM v, SCM k, SCM obj);
  92 SCM_API SCM scm_make_vector (SCM k, SCM fill);
  93 SCM_API SCM scm_vector_to_list (SCM v);
  94 SCM_API SCM scm_vector_fill_x (SCM v, SCM fill_x);
  95 SCM_API SCM scm_vector_equal_p (SCM x, SCM y);
  96 SCM_API SCM scm_vector_move_left_x (SCM vec1, SCM start1, SCM end1,
  97                                     SCM vec2, SCM start2);
  98 SCM_API SCM scm_vector_move_right_x (SCM vec1, SCM start1, SCM end1,
  99                                      SCM vec2, SCM start2);
 100 SCM_API void scm_init_vectors (void);
 101
 102 #endif  /* SCM_VECTORS_H */
 103
 104 /*
 105   Local Variables:
 106   c-file-style: "gnu"
 107   End:
 108 */