2 ** Copyright (C) University of Virginia, Massachusetts Institue of Technology 1994-2001.
3 ** See ../LICENSE for license information.
10 # ifndef clauseStack_H
11 # define clauseStack_H
18 /*@reldef@*/ clause *elements;
21 /*@iter clauseStack_elements (sef clauseStack s, yield clause el); @*/
22 # define clauseStack_elements(s, m_el) \
23 { int m_i; for (m_i = (s)->nelements - 1; m_i >= 0; m_i--) { clause m_el = (s)->elements[m_i];
25 # define end_clauseStack_elements }}
27 extern int clauseStack_size (clauseStack p_s) /*@*/ ;
28 extern bool clauseStack_isEmpty (clauseStack p_s) /*@*/ ;
30 # define clauseStack_size(s) ((s)->nelements)
31 # define clauseStack_isEmpty(s) (clauseStack_size(s) == 0)
33 extern /*@only@*/ clauseStack clauseStack_new (void) /*@*/ ;
35 extern void clauseStack_push (clauseStack p_s, clause p_el) /*@modifies p_s@*/ ;
36 extern void clauseStack_pop (clauseStack p_s) /*@modifies p_s@*/ ;
37 extern clause clauseStack_top (clauseStack p_s) /*@*/ ;
39 extern /*@only@*/ cstring clauseStack_unparse (clauseStack p_s) /*@*/ ;
40 extern void clauseStack_free (/*@only@*/ clauseStack p_s) ;
41 extern void clauseStack_clear (clauseStack p_s) /*@modifies p_s@*/ ;
42 extern void clauseStack_switchTop (clauseStack p_s, clause p_x) /*@modifies p_s@*/ ;
43 extern void clauseStack_removeFirst (clauseStack p_s, clause p_key)
46 extern int clauseStack_controlDepth (clauseStack p_s) /*@*/ ;
48 /*@constant int clauseStackBASESIZE;@*/
49 # define clauseStackBASESIZE MIDBASESIZE
52 # error "Multiple include"