1 /* Copyright (C) 1995,1996 Free Software Foundation, Inc.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2, or (at your option)
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this software; see the file COPYING. If not, write to
15 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
17 * As a special exception, the Free Software Foundation gives permission
18 * for additional uses of the text contained in its release of GUILE.
20 * The exception is that, if you link the GUILE library with other files
21 * to produce an executable, this does not by itself cause the
22 * resulting executable to be covered by the GNU General Public License.
23 * Your use of that executable is in no way restricted on account of
24 * linking the GUILE library code into it.
26 * This exception does not however invalidate any other reasons why
27 * the executable file might be covered by the GNU General Public License.
29 * This exception applies only to the code released by the
30 * Free Software Foundation under the name GUILE. If you copy
31 * code from other Free Software Foundation releases into a copy of
32 * GUILE, as the General Public License permits, the exception does
33 * not apply to the code that you add in this way. To avoid misleading
34 * anyone as to the status of such modified files, you must delete
35 * this exception notice from them.
37 * If you write modifications of your own for GUILE, it is your choice
38 * whether to permit this exception to apply to your modifications.
39 * If you do not wish that, delete this exception notice.
54 /* scm_smobs scm_numsmob
55 * implement a dynamicly resized array of smob records.
56 * Indexes into this table are used when generating type
57 * tags for smobjects (if you know a tag you can get an index and conversely).
59 scm_sizet scm_numsmob
;
60 scm_smobfuns
*scm_smobs
;
68 if (255 <= scm_numsmob
)
71 SCM_SYSCALL (tmp
= (char *) realloc ((char *) scm_smobs
, (1 + scm_numsmob
) * sizeof (scm_smobfuns
)));
74 scm_smobs
= (scm_smobfuns
*) tmp
;
75 scm_smobs
[scm_numsmob
].mark
= smob
->mark
;
76 scm_smobs
[scm_numsmob
].free
= smob
->free
;
77 scm_smobs
[scm_numsmob
].print
= smob
->print
;
78 scm_smobs
[scm_numsmob
].equalp
= smob
->equalp
;
83 smoberr
:scm_wta (SCM_MAKINUM ((long) scm_numsmob
), (char *) SCM_NALLOC
, "newsmob");
84 return scm_tc7_smob
+ (scm_numsmob
- 1) * 256;
87 /* {Initialization for i/o types, float, bignum, the type of free cells}
90 static scm_smobfuns freecell
=
98 static scm_smobfuns flob
=
106 static scm_smobfuns bigob
=
118 scm_smob_prehistory ()
121 scm_smobs
= (scm_smobfuns
*) malloc (7 * sizeof (scm_smobfuns
));
123 /* WARNING: These scm_newsmob calls must be done in this order */
124 scm_newsmob (&freecell
);
126 scm_newsmob (&bigob
);
127 scm_newsmob (&bigob
); /* n.b.: two smobs, one smobfuns */