libguile/weaks.h

   1 /* classes: h_files */
   2
   3 #ifndef WEAKSH
   4 #define WEAKSH
   5 /*      Copyright (C) 1995,1996 Free Software Foundation, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this software; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * As a special exception, the Free Software Foundation gives permission
  22  * for additional uses of the text contained in its release of GUILE.
  23  *
  24  * The exception is that, if you link the GUILE library with other files
  25  * to produce an executable, this does not by itself cause the
  26  * resulting executable to be covered by the GNU General Public License.
  27  * Your use of that executable is in no way restricted on account of
  28  * linking the GUILE library code into it.
  29  *
  30  * This exception does not however invalidate any other reasons why
  31  * the executable file might be covered by the GNU General Public License.
  32  *
  33  * This exception applies only to the code released by the
  34  * Free Software Foundation under the name GUILE.  If you copy
  35  * code from other Free Software Foundation releases into a copy of
  36  * GUILE, as the General Public License permits, the exception does
  37  * not apply to the code that you add in this way.  To avoid misleading
  38  * anyone as to the status of such modified files, you must delete
  39  * this exception notice from them.
  40  *
  41  * If you write modifications of your own for GUILE, it is your choice
  42  * whether to permit this exception to apply to your modifications.
  43  * If you do not wish that, delete this exception notice.
  44  */
  45 \f
  46
  47 #include "libguile/__scm.h"
  48
  49 \f
  50
  51
  52 #define SCM_WVECTP(x) (SCM_TYP7(x)==scm_tc7_wvect)
  53 #define SCM_IS_WHVEC(X) (SCM_VELTS(X)[-1] == 1)
  54 #define SCM_IS_WHVEC_V(X) (SCM_VELTS(X)[-1] == 2)
  55 #define SCM_IS_WHVEC_B(X) (SCM_VELTS(X)[-1] == 3)
  56 #define SCM_IS_WHVEC_ANY(X) (SCM_VELTS(X)[-1])
  57
  58 \f
  59 #ifdef __STDC__
  60 extern SCM scm_make_weak_vector (SCM k, SCM fill);
  61 extern SCM scm_weak_vector (SCM l);
  62 extern SCM scm_weak_vector_p (SCM x);
  63 extern SCM scm_make_weak_key_hash_table (SCM k);
  64 extern SCM scm_make_weak_value_hash_table (SCM k);
  65 extern SCM scm_make_doubly_weak_hash_table (SCM k);
  66 extern SCM scm_weak_key_hash_table_p (SCM x);
  67 extern SCM scm_weak_value_hash_table_p (SCM x);
  68 extern SCM scm_doubly_weak_hash_table_p (SCM x);
  69 extern void scm_init_weaks (void);
  70
  71 #else /* STDC */
  72 extern SCM scm_make_weak_vector ();
  73 extern SCM scm_weak_vector ();
  74 extern SCM scm_weak_vector_p ();
  75 extern SCM scm_make_weak_key_hash_table ();
  76 extern SCM scm_make_weak_value_hash_table ();
  77 extern SCM scm_make_doubly_weak_hash_table ();
  78 extern SCM scm_weak_key_hash_table_p ();
  79 extern SCM scm_weak_value_hash_table_p ();
  80 extern SCM scm_doubly_weak_hash_table_p ();
  81 extern void scm_init_weaks ();
  82
  83 #endif /* STDC */
  84
  85
  86 #endif  /* WEAKSH */