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small optimization

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2024-08-30 19:57:22 -07:00 • committed by Lev Nachmanson
parent 66c6bad01c
commit 0b1e923d2a
1 changed files with 7 additions and 6 deletions
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13
src/math/lp/dioph_eq.cpp
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@ -264,7 +264,12 @@ namespace lp {
std::list<unsigned>::iterator pick_eh() {
return m_f.begin(); // TODO: make a smarter joice
}
void add_operator(lar_term& t, const mpq& k, const lar_term& l) {
for (const auto& p: l) {
t.add_monomial(k*p.coeff(), p.j());
}
}
void substitute_var_on_f(unsigned k, int k_sign, const term_o& k_subst, const lar_term& l_term, unsigned index_to_avoid) {
TRACE("dioph_eq", print_term_o(k_subst, tout<< "x" << k<< " -> ") << std::endl; tout << "l_term:"; print_lar_term_L(l_term, tout) << std::endl;);
@ -277,11 +282,7 @@ namespace lp {
TRACE("dioph_eq", print_eprime_entry(e_index, tout << "before:") << std::endl;
tout << "k_coeff:" << k_coeff << std::endl;);
if (!l_term.is_empty()) {
if (k_sign == 1)
m_eprime[e_index].m_l -= k_coeff*l_term;
else {
m_eprime[e_index].m_l += k_coeff*l_term;
}
add_operator(m_eprime[e_index].m_l, -k_coeff, l_term);
}
e.substitute(k_subst, k);
TRACE("dioph_eq", print_eprime_entry(e_index, tout << "after :") << std::endl;);