6 /* Copyright (C) 1995,1996,2000, 2006 Free Software Foundation, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library 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 GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libguile/__scm.h"
34 #define scm_is_false(x) scm_is_eq ((x), SCM_BOOL_F)
35 #define scm_is_true(x) !scm_is_false (x)
37 SCM_API int scm_is_bool (SCM x);
38 #define scm_from_bool(x) ((x) ? SCM_BOOL_T : SCM_BOOL_F)
39 SCM_API int scm_to_bool (SCM x);
43 SCM_API SCM scm_not (SCM x);
44 SCM_API SCM scm_boolean_p (SCM obj);
46 SCM_API void scm_init_boolean (void);
48 #endif /* SCM_BOOLEAN_H */