-/* classes: h_files */
-
-#ifndef VARIABLEH
-#define VARIABLEH
-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-\f
-#include "libguile/__scm.h"
-
-\f
-
-
-/* Variables
- */
-extern int scm_tc16_variable;
-
-#define SCM_VARVCELL(V) SCM_CDR(V)
-#define SCM_VARIABLEP(X) (scm_tc16_variable == SCM_CAR(X))
-#define SCM_UDVARIABLEP(X) (SCM_VARIABLEP(X) && SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (X))))
-#define SCM_DEFVARIABLEP(X) (SCM_VARIABLEP(X) && !SCM_UNBNDP (SCM_CDR (SCM_VARVCELL (X))))
-
-\f
-#ifdef __STDC__
-extern SCM scm_make_variable (SCM init, SCM name_hint);
-extern SCM scm_make_undefined_variable (SCM name_hint);
-extern SCM scm_variable_p (SCM obj);
-extern SCM scm_variable_ref (SCM var);
-extern SCM scm_variable_set_x (SCM var, SCM val);
-extern SCM scm_builtin_variable (SCM name);
-extern SCM scm_variable_bound_p (SCM var);
-extern void scm_init_variable (void);
-
-#else /* STDC */
-extern SCM scm_make_variable ();
-extern SCM scm_make_undefined_variable ();
-extern SCM scm_variable_p ();
-extern SCM scm_variable_ref ();
-extern SCM scm_variable_set_x ();
-extern SCM scm_builtin_variable ();
-extern SCM scm_variable_bound_p ();
-extern void scm_init_variable ();
-
-#endif /* STDC */
-
-
-
-
-
-#endif /* VARIABLEH */
+/* classes: h_files */
+
+#ifndef SCM_VARIABLE_H
+#define SCM_VARIABLE_H
+
+/* Copyright (C) 1995,1996,2000,2001, 2006, 2008 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+\f
+
+#include "libguile/__scm.h"
+#include "libguile/smob.h"
+
+\f
+
+/* Variables
+ */
+#define SCM_VARIABLEP(X) (!SCM_IMP (X) && SCM_TYP7(X) == scm_tc7_variable)
+#define SCM_VARIABLE_REF(V) SCM_CELL_OBJECT_1 (V)
+#define SCM_VARIABLE_SET(V, X) SCM_SET_CELL_OBJECT_1 (V, X)
+#define SCM_VARIABLE_LOC(V) (SCM_CELL_OBJECT_LOC ((V), 1))
+
+\f
+
+SCM_API SCM scm_make_variable (SCM init);
+SCM_API SCM scm_make_undefined_variable (void);
+SCM_API SCM scm_variable_p (SCM obj);
+SCM_API SCM scm_variable_ref (SCM var);
+SCM_API SCM scm_variable_set_x (SCM var, SCM val);
+SCM_API SCM scm_variable_unset_x (SCM var);
+SCM_API SCM scm_variable_bound_p (SCM var);
+
+SCM_INTERNAL void scm_i_variable_print (SCM var, SCM port, scm_print_state *pstate);
+
+SCM_INTERNAL void scm_init_variable (void);
+
+#endif /* SCM_VARIABLE_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff