projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6dce4937 C |
1 | /* stack.h - structed access to object stacks |
| 2 | Copyright (C) 1988 Free Software Foundation, Inc. | |
| 3 | Contributed by Michael Tiemann (tiemann@cygnus.com). | |
| 4 | ||
| 5 | This program is free software; you can redistribute it and/or modify it | |
| 6 | under the terms of the GNU General Public License as published by the | |
| 7 | Free Software Foundation; either version 2, or (at your option) any | |
| 8 | later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with this program; if not, write to the Free Software | |
| 17 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 18 | ||
| 19 | /* Summary: this file contains additional structures that layer | |
| 20 | on top of obstacks for GNU C++. */ | |
| 21 | ||
| 22 | /* Stack of data placed on obstacks. */ | |
| 23 | ||
| 24 | struct stack_level | |
| 25 | { | |
| 26 | /* Pointer back to previous such level. */ | |
| 27 | struct stack_level *prev; | |
| 28 | ||
| 29 | /* Point to obstack we should return to. */ | |
| 30 | struct obstack *obstack; | |
| 31 | ||
| 32 | /* First place we start putting data. */ | |
| 33 | tree *first; | |
| 34 | ||
| 35 | /* Number of entries we can have from `first'. | |
| 36 | Right now we are dumb: if we overflow, abort. */ | |
| 37 | int limit; | |
| 38 | }; | |
| 39 | ||
| 40 | struct stack_level *push_stack_level (); | |
| 41 | struct stack_level *pop_stack_level (); |