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encapsulate anum functionality

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This commit is contained in:
Nikolaj Bjorner 2024-01-20 12:59:50 -08:00
parent 548be4c1f9
commit 17545233e6
2 changed files with 26 additions and 19 deletions
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25
src/math/polynomial/algebraic_numbers.h
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@ -360,19 +360,25 @@ namespace algebraic_numbers {
struct basic_cell;
struct algebraic_cell;
enum anum_kind { BASIC = 0, ROOT };
class anum {
enum anum_kind { BASIC = 0, ROOT };
void* m_cell;
public:
anum() :m_cell(nullptr) {}
anum(basic_cell* cell) :m_cell(TAG(void*, cell, BASIC)) { }
anum(algebraic_cell * cell):m_cell(TAG(void*, cell, ROOT)) { }
class anum {
friend struct manager::imp;
friend class manager;
void * m_cell;
anum(basic_cell * cell):m_cell(TAG(void*, cell, BASIC)) {}
anum(algebraic_cell * cell):m_cell(TAG(void*, cell, ROOT)) {}
bool is_basic() const { return GET_TAG(m_cell) == BASIC; }
basic_cell * to_basic() const { SASSERT(is_basic()); return UNTAG(basic_cell*, m_cell); }
algebraic_cell * to_algebraic() const { SASSERT(!is_basic()); return UNTAG(algebraic_cell*, m_cell); }
public:
anum():m_cell(nullptr) {}
bool is_null() const { return m_cell == nullptr; }
void clear() { m_cell = nullptr; }
void swap(anum & other) { std::swap(m_cell, other.m_cell); }
anum& operator=(basic_cell* cell) { SASSERT(is_null()); m_cell = TAG(void*, cell, BASIC); return *this; }
anum& operator=(algebraic_cell* cell) { SASSERT(is_null()); m_cell = TAG(void*, cell, ROOT); return *this; }
};
};
@ -428,6 +434,7 @@ AN_MK_BINARY(operator/, div)
#undef AN_MK_BINARY
#undef AN_MK_BINARY_CORE
inline scoped_anum root(scoped_anum const & a, unsigned k) {
scoped_anum r(a.m());
a.m().root(a, k, r);