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Bit-Propagation for most operations (Backtracking missing)

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This commit is contained in:
Clemens Eisenhofer 2022-12-24 16:37:53 +01:00
parent c8b9127028
commit 173fb9c2bd
7 changed files with 706 additions and 150 deletions
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11
src/util/tbv.h
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@ -43,6 +43,7 @@ class tbv_manager {
ptr_vector<tbv> allocated_tbvs;
public:
tbv_manager(unsigned n): m(2*n) {}
tbv_manager(const tbv_manager& m) = delete;
~tbv_manager();
void reset();
tbv* allocate();
@ -127,7 +128,7 @@ private:
return (fixed_bit_vector::get(index) << 1) | (unsigned)fixed_bit_vector::get(index+1);
}
};
class tbv_ref {
tbv_manager& mgr;
tbv* d;
@ -152,4 +153,12 @@ public:
unsigned num_tbits() const { return mgr.num_tbits(); }
};
inline std::ostream& operator<<(std::ostream& out, tbv_ref const& c) {
const char* names[] = { "z", "0", "1", "x" };
for (unsigned i = c.num_tbits(); i > 0; i--) {
out << names[(unsigned)c[i - 1]];
}
return out;
}