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https://github.com/Z3Prover/z3
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51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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obj_mark.h
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Abstract:
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A mapping from object to boolean (for objects that can be mapped to unsigned integers).
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Author:
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Leonardo de Moura (leonardo) 2008-01-02.
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Revision History:
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--*/
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#pragma once
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#include "util/bit_vector.h"
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template<typename T>
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struct default_t2uint {
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unsigned operator()(T const & obj) const { return obj.get_id(); }
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};
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template<typename T, typename BV = bit_vector, typename T2UInt = default_t2uint<T> >
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class obj_mark {
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T2UInt m_proc;
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BV m_marks;
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public:
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obj_mark(T2UInt const & p = T2UInt()):m_proc(p) {}
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bool is_marked(T const & obj) const {
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unsigned id = m_proc(obj);
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return id < m_marks.size() && m_marks.get(id);
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}
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bool is_marked(T * obj) const { return is_marked(*obj); }
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void mark(T const & obj, bool flag) {
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unsigned id = m_proc(obj);
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if (id >= m_marks.size()) {
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m_marks.resize(id+1, 0);
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}
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m_marks.set(id, flag);
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}
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void mark(T const * obj, bool flag) { mark(*obj, flag); }
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void mark(T const & obj) { mark(obj, true); }
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void mark(T const * obj) { mark(obj, true); }
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void reset() { m_marks.reset(); }
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};
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