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fix nex order and cross_nested

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-10-12 16:13:21 -07:00
parent eaba70e916
commit dc39ef761c
4 changed files with 50 additions and 10 deletions
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13
src/math/lp/nex_creator.cpp
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@ -123,7 +123,7 @@ bool nex_creator::less_than_on_mul_mul_same_degree_iterate(const nex_mul* a, con
auto a_end = a->end();
auto b_end = b->end();
unsigned a_pow, b_pow;
bool ret;
int ret = - 1;
do {
if (!inside_a_p) { a_pow = it_a->pow(); }
if (!inside_b_p) { b_pow = it_b->pow(); }
@ -141,14 +141,14 @@ bool nex_creator::less_than_on_mul_mul_same_degree_iterate(const nex_mul* a, con
it_a++; it_b++;
if (it_a == a_end) {
if (it_b != b_end) {
ret = true;
ret = false;
break;
}
SASSERT(it_a == a_end && it_b == b_end);
ret = a->coeff() < b->coeff();
break;
}
if (it_b == b_end) {
if (it_b == b_end) { // it_a is not at the end
ret = false;
break;
}
@ -176,7 +176,8 @@ bool nex_creator::less_than_on_mul_mul_same_degree_iterate(const nex_mul* a, con
inside_b_p = false;
}
} while (true);
if (ret == -1)
ret = true;
TRACE("nla_cn_details", tout << "a = " << *a << (ret == 1?" < ":" >= ") << *b << "\n";);
return ret;
}
@ -193,9 +194,9 @@ bool nex_creator::less_than_on_mul_mul(const nex_mul* a, const nex_mul* b) const
unsigned b_deg = b->get_degree();
bool ret;
if (a_deg > b_deg) {
ret = true;
} else if (a_deg < b_deg) {
ret = false;
} else if (a_deg < b_deg) {
ret = true;
} else {
ret = less_than_on_mul_mul_same_degree(a, b);
}