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Unordered: Check that reserve works for both range and single element insert.

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[SVN r78369]
This commit is contained in:
Daniel James
2012-05-07 18:10:04 +00:00
parent 6b44f3b887
commit 39aed02e32
2 changed files with 52 additions and 8 deletions
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2
include/boost/unordered/detail/unique.hpp
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@ -535,7 +535,7 @@ namespace boost { namespace unordered { namespace detail {
a.construct_node();
a.construct_value2(*i);
if(this->size_ + 1 >= this->max_load_)
if(this->size_ + 1 > this->max_load_)
this->reserve_for_insert(this->size_ +
boost::unordered::detail::insert_size(i, j));

58
test/unordered/rehash_tests.cpp
View File

@ -101,7 +101,44 @@ void rehash_test1(X* = 0,
}
template <class X>
void reserve_test(X* = 0,
void reserve_test1(X* = 0,
test::random_generator generator = test::default_generator)
{
for (int random_mlf = 0; random_mlf < 2; ++random_mlf)
{
for (int i = 1; i < 2000; i += i < 50 ? 1 : 13)
{
test::random_values<X> v(i, generator);
test::ordered<X> tracker;
tracker.insert_range(v.begin(), v.end());
X x;
x.max_load_factor(random_mlf ?
static_cast<float>(std::rand() % 1000) / 500.0f + 0.5f : 1.0f);
// For the current standard this should reserve i+1, I've
// submitted a defect report and will assume it's a defect
// for now.
x.reserve(i);
// Insert an element before the range insert, otherwise there are
// no iterators to invalidate in the range insert, and it can
// rehash.
typename test::random_values<X>::iterator it = v.begin();
x.insert(*it);
++it;
std::size_t bucket_count = x.bucket_count();
x.insert(it, v.end());
BOOST_TEST(bucket_count == x.bucket_count());
tracker.compare(x);
}
}
}
template <class X>
void reserve_test2(X* = 0,
test::random_generator generator = test::default_generator)
{
for (int random_mlf = 0; random_mlf < 2; ++random_mlf)
@ -115,13 +152,17 @@ void reserve_test(X* = 0,
X x;
x.max_load_factor(random_mlf ?
static_cast<float>(std::rand() % 1000) / 500.0 + 0.5f : 1.0f);
// For the current standard this should reserve i+1, I've
// submitted a defect report and will assume it's a defect
// for now.
static_cast<float>(std::rand() % 1000) / 500.0f + 0.5f : 1.0f);
x.reserve(i);
std::size_t bucket_count = x.bucket_count();
x.insert(v.begin(), v.end());
for (typename test::random_values<X>::iterator it = v.begin();
it != v.end(); ++it)
{
x.insert(*it);
}
BOOST_TEST(bucket_count == x.bucket_count());
tracker.compare(x);
}
@ -145,7 +186,10 @@ UNORDERED_TEST(rehash_empty_test3,
UNORDERED_TEST(rehash_test1,
((int_set_ptr)(int_multiset_ptr)(int_map_ptr)(int_multimap_ptr))
)
UNORDERED_TEST(reserve_test,
UNORDERED_TEST(reserve_test1,
((int_set_ptr)(int_multiset_ptr)(int_map_ptr)(int_multimap_ptr))
)
UNORDERED_TEST(reserve_test2,
((int_set_ptr)(int_multiset_ptr)(int_map_ptr)(int_multimap_ptr))
)