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fix memory leak in scoped_numeral_vector

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-03-22 20:34:34 -07:00
parent 92145f2bfa
commit ea261c930d
2 changed files with 10 additions and 3 deletions
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9
src/opt/weighted_maxsat.cpp
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@ -79,7 +79,9 @@ namespace smt {
m_normalize(false)
{}
virtual ~theory_weighted_maxsat() { }
virtual ~theory_weighted_maxsat() {
m_old_values.reset();
}
/**
\brief return the complement of variables that are currently assigned.
@ -208,7 +210,7 @@ namespace smt {
virtual void undo(context & ctx) {
m_value = m_old_values.back();
m_old_values.pop_back();
m_old_values.shrink(m_old_values.size() - 1);
}
};
@ -219,7 +221,8 @@ namespace smt {
context& ctx = get_context();
theory_var tv = m_bool2var[v];
if (m_assigned[tv]) return;
mpz const& w = m_zweights[tv];
scoped_mpz w(m_mpz);
w = m_zweights[tv];
ctx.push_trail(numeral_trail(m_zcost, m_old_values));
ctx.push_trail(push_back_vector<context, svector<theory_var> >(m_costs));
ctx.push_trail(value_trail<context, bool>(m_assigned[tv]));

4
src/util/scoped_numeral_vector.h
View file

@ -46,6 +46,10 @@ public:
m_manager.set(this->back(), v);
}
void pop_back() {
shrink(size()-1);
}
void shrink(unsigned sz) {
unsigned old_sz = this->size();
if (old_sz == sz)