Files
boost_unordered/test/unordered/rehash_tests.cpp
Daniel James ae09b0dd24 Merge latest changes for unordered. Improved compatability and a few tweaks.
Merged revisions 53127,53253,53256,53311,53314,53316-53318 via svnmerge from 
https://svn.boost.org/svn/boost/trunk

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  r53127 | danieljames | 2009-05-20 07:43:38 +0100 (Wed, 20 May 2009) | 1 line
  
  Better configuration for boost.unordered.
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  r53253 | danieljames | 2009-05-25 20:14:07 +0100 (Mon, 25 May 2009) | 3 lines
  
  Add explicit destructors to the unordered containers. Refs #2908.
  
  Isn't really needed but it doesn't hurt.
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  r53256 | danieljames | 2009-05-25 20:45:23 +0100 (Mon, 25 May 2009) | 1 line
  
  Unordered change log for explicit destructors.
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  r53311 | danieljames | 2009-05-27 18:42:01 +0100 (Wed, 27 May 2009) | 1 line
  
  Missing changelog entry.
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  r53314 | danieljames | 2009-05-27 18:44:09 +0100 (Wed, 27 May 2009) | 1 line
  
  Use lightweight_test for unordered.
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  r53316 | danieljames | 2009-05-27 19:19:32 +0100 (Wed, 27 May 2009) | 1 line
  
  Some workarounds for old versions of Borland.
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  r53317 | danieljames | 2009-05-27 19:32:22 +0100 (Wed, 27 May 2009) | 1 line
  
  Fix a change accidentally included in the last commit.
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  r53318 | danieljames | 2009-05-27 19:32:38 +0100 (Wed, 27 May 2009) | 1 line
  
  Remove an unused function.
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[SVN r53465]
2009-05-30 17:34:12 +00:00

73 lines
1.8 KiB
C++

// Copyright 2006-2009 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/unordered_set.hpp>
#include <boost/unordered_map.hpp>
#include "../helpers/test.hpp"
#include "../helpers/random_values.hpp"
#include "../helpers/tracker.hpp"
namespace rehash_tests
{
test::seed_t seed(2974);
template <class X>
bool postcondition(X const& x, BOOST_DEDUCED_TYPENAME X::size_type n)
{
return x.bucket_count() > x.size() / x.max_load_factor() && x.bucket_count() >= n;
}
template <class X>
void rehash_empty_test1(X* = 0)
{
X x;
x.rehash(10000);
BOOST_TEST(postcondition(x, 10000));
x.rehash(0);
BOOST_TEST(postcondition(x, 0));
}
template <class X>
void rehash_test1(X* = 0, test::random_generator generator = test::default_generator)
{
test::random_values<X> v(1000, generator);
test::ordered<X> tracker;
tracker.insert_range(v.begin(), v.end());
X x(v.begin(), v.end());
x.rehash(0); BOOST_TEST(postcondition(x, 0));
tracker.compare(x);
x.max_load_factor(0.25);
x.rehash(0); BOOST_TEST(postcondition(x, 0));
tracker.compare(x);
x.max_load_factor(50.0);
x.rehash(0); BOOST_TEST(postcondition(x, 0));
tracker.compare(x);
x.rehash(1000); BOOST_TEST(postcondition(x, 1000));
tracker.compare(x);
}
boost::unordered_set<int>* int_set_ptr;
boost::unordered_multiset<int>* int_multiset_ptr;
boost::unordered_map<int, int>* int_map_ptr;
boost::unordered_multimap<int, int>* int_multimap_ptr;
UNORDERED_TEST(rehash_empty_test1,
((int_set_ptr)(int_multiset_ptr)(int_map_ptr)(int_multimap_ptr))
)
UNORDERED_TEST(rehash_test1,
((int_set_ptr)(int_multiset_ptr)(int_map_ptr)(int_multimap_ptr))
)
}
RUN_TESTS()