-/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2011 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 3 of the License, 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 program. If not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef CTL_STACK_H
-#define CTL_STACK_H 1
-
-#include <stdbool.h>
-
-/* The following #include avoids a potential problem when Gnulib substitutes
- * for close() by putting "#define close rpl_close" into <unistd.h>, by
- * ensuring that every source file that includes this one sees the #define..
- * (It would probably be better to rename the 'close' member of struct
- * ctl_class.) */
-#include <unistd.h>
-
-struct ctl_class
- {
- const char *start_name; /* e.g. LOOP. */
- const char *end_name; /* e.g. END LOOP. */
- void (*close) (void *); /* Closes the control structure. */
- };
-
-void ctl_stack_clear (void);
-void ctl_stack_push (const struct ctl_class *, void *private);
-void *ctl_stack_top (const struct ctl_class *);
-void *ctl_stack_search (const struct ctl_class *);
-void ctl_stack_pop (void *);
-bool ctl_stack_is_empty (void);
-
-#endif /* ctl_stack.h */