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fixplex

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-04-20 12:03:28 -07:00
parent 4da1b7b03c
commit 831edba1c8
7 changed files with 26 additions and 1 deletions
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10
src/math/simplex/sparse_matrix.h
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@ -201,6 +201,16 @@ namespace simplex {
row_iterator row_begin(row const& r) { return row_iterator(m_rows[r.id()], true); }
row_iterator row_end(row const& r) { return row_iterator(m_rows[r.id()], false); }
struct row_entries_t {
sparse_matrix& m;
row const& r;
row_entries_t(sparse_matrix & m, row const& r): m(m), r(r) {}
row_iterator begin() { return m.row_begin(r); }
row_iterator end() { return m.row_end(r); }
};
row_entries_t row_entries(row const& r) { return row_entries_t(*this, r); }
unsigned column_size(var_t v) const { return m_columns[v].size(); }
class col_iterator {