bnb: exit selection when best_waste is 0

If we find a solution which has no waste, just use that. This solution
is what we would consider to be optimal, and other solutions we find
would have to also have 0 waste, so they are equivalent to the first
one with 0 waste. Thus we can optimize by just choosing the first one
with 0 waste.
This commit is contained in:
Andrew Chow
2020-03-04 16:35:15 -05:00
parent a71c34742c
commit 9b5950db86
2 changed files with 6 additions and 4 deletions

View File

@@ -176,8 +176,8 @@ BOOST_AUTO_TEST_CASE(bnb_search_test)
selection.clear();
// Select 5 Cent
add_coin(3 * CENT, 3, actual_selection);
add_coin(2 * CENT, 2, actual_selection);
add_coin(4 * CENT, 4, actual_selection);
add_coin(1 * CENT, 1, actual_selection);
BOOST_CHECK(SelectCoinsBnB(GroupCoins(utxo_pool), 5 * CENT, 0.5 * CENT, selection, value_ret, not_input_fees));
BOOST_CHECK(equal_sets(selection, actual_selection));
BOOST_CHECK_EQUAL(value_ret, 5 * CENT);
@@ -204,9 +204,8 @@ BOOST_AUTO_TEST_CASE(bnb_search_test)
// Select 10 Cent
add_coin(5 * CENT, 5, utxo_pool);
add_coin(5 * CENT, 5, actual_selection);
add_coin(4 * CENT, 4, actual_selection);
add_coin(3 * CENT, 3, actual_selection);
add_coin(2 * CENT, 2, actual_selection);
add_coin(1 * CENT, 1, actual_selection);
BOOST_CHECK(SelectCoinsBnB(GroupCoins(utxo_pool), 10 * CENT, 0.5 * CENT, selection, value_ret, not_input_fees));
BOOST_CHECK(equal_sets(selection, actual_selection));