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fixing projection

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-14 15:53:25 -07:00
parent d36406f845
commit 1109316621
3 changed files with 51 additions and 21 deletions
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14
src/sat/sat_bdd.h
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@ -29,9 +29,9 @@ namespace sat {
class bdd {
friend class bdd_manager;
int root;
unsigned root;
bdd_manager* m;
bdd(int root, bdd_manager* m);
bdd(unsigned root, bdd_manager* m);
public:
bdd(bdd & other);
bdd& operator=(bdd const& other);
@ -57,7 +57,7 @@ namespace sat {
class bdd_manager {
friend bdd;
typedef int BDD;
typedef unsigned BDD;
enum bdd_op {
bdd_and_op = 2,
@ -70,7 +70,7 @@ namespace sat {
};
struct bdd_node {
bdd_node(unsigned level, int lo, int hi):
bdd_node(unsigned level, BDD lo, BDD hi):
m_refcount(0),
m_level(level),
m_lo(lo),
@ -80,8 +80,8 @@ namespace sat {
bdd_node(): m_level(0), m_lo(0), m_hi(0), m_index(0) {}
unsigned m_refcount : 10;
unsigned m_level : 22;
int m_lo;
int m_hi;
BDD m_lo;
BDD m_hi;
unsigned m_index;
unsigned hash() const { return mk_mix(m_level, m_lo, m_hi); }
};
@ -176,7 +176,7 @@ namespace sat {
inline bool is_true(BDD b) const { return b == true_bdd; }
inline bool is_false(BDD b) const { return b == false_bdd; }
inline bool is_const(BDD b) const { return 0 <= b && b <= 1; }
inline bool is_const(BDD b) const { return b <= 1; }
inline unsigned level(BDD b) const { return m_nodes[b].m_level; }
inline unsigned var(BDD b) const { return m_level2var[level(b)]; }
inline BDD lo(BDD b) const { return m_nodes[b].m_lo; }