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fix #5541

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This commit is contained in:
Nikolaj Bjorner 2021-09-20 10:10:28 -07:00
parent 426306376f
commit 6f31d83633
11 changed files with 62 additions and 34 deletions
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12
src/ast/for_each_expr.h
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@ -168,9 +168,13 @@ bool has_skolem_functions(expr * n);
// pre-order traversal of subterms
class subterms {
bool m_include_bound = false;
expr_ref_vector m_es;
subterms(expr_ref const& e, bool include_bound);
subterms(expr_ref_vector const& es, bool include_bound);
public:
class iterator {
bool m_include_bound = false;
expr_ref_vector m_es;
expr_mark m_visited;
public:
@ -181,8 +185,12 @@ public:
bool operator==(iterator const& other) const;
bool operator!=(iterator const& other) const;
};
subterms(expr_ref_vector const& es);
subterms(expr_ref const& e);
static subterms all(expr_ref const& e) { return subterms(e, true); }
static subterms ground(expr_ref const& e) { return subterms(e, false); }
static subterms all(expr_ref_vector const& e) { return subterms(e, true); }
static subterms ground(expr_ref_vector const& e) { return subterms(e, false); }
iterator begin();
iterator end();
};