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pass simplify expession test

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-09-30 13:50:18 -07:00
parent 4c1a120391
commit 5e749045e1
4 changed files with 95 additions and 40 deletions
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28
src/math/lp/nex.h
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@ -86,12 +86,7 @@ public:
#endif
bool virtual is_linear() const = 0;
};
#if Z3DEBUG
bool operator<(const nex& a , const nex& b);
inline bool operator ==(const nex& a , const nex& b) {
return ! (a < b || b < a) ;
}
#endif
std::ostream& operator<<(std::ostream& out, const nex&);
class nex_var : public nex {
@ -228,7 +223,6 @@ public:
}
bool is_linear() const {
// SASSERT(is_simplified());
return get_degree() < 2; // todo: make it more efficient
}
@ -374,25 +368,5 @@ inline bool less_than_nex_standard(const nex* a, const nex* b) {
lt_on_vars lt = [](lpvar j, lpvar k) { return j < k; };
return less_than_nex(a, b, lt);
}
#if Z3DEBUG
inline bool operator<(const ptr_vector<nex>&a , const ptr_vector<nex>& b) {
int r = (int)a.size() - (int)b.size();
if (r)
return r < 0;
for (unsigned j = 0; j < a.size(); j++) {
if (*a[j] < *b[j]) {
return true;
}
if (*b[j] < *a[j]) {
return false;
}
}
return false;
}
#endif
}