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libs/multi_index/test/test_copy_assignment.cpp

/* Boost.MultiIndex test for copying and assignment.
 *
 * Copyright 2003-2018 Joaquin M Lopez Munoz.
 * 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)
 *
 * See http://www.boost.org/libs/multi_index for library home page.
 */

#include "test_copy_assignment.hpp"

#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <algorithm>
#include <boost/move/utility_core.hpp>
#include <list>
#include <numeric>
#include <vector>
#include "pre_multi_index.hpp"
#include "employee.hpp"
#include "small_allocator.hpp"
#include <boost/detail/lightweight_test.hpp>

using namespace boost::multi_index;

#if BOOST_WORKAROUND(__MWERKS__,<=0x3003)
/* The "ISO C++ Template Parser" option makes CW8.3 incorrectly fail at
 * expressions of the form sizeof(x) where x is an array local to a
 * template function.
 */

#pragma parse_func_templ off
#endif

typedef multi_index_container<int> copyable_and_movable;

struct holder
{
  copyable_and_movable c;
};

template<typename Sequence>
static void test_assign()
{
  Sequence s;

  int a[]={0,1,2,3,4,5};
  std::size_t sa=sizeof(a)/sizeof(a[0]);

  s.assign(&a[0],&a[sa]);
  BOOST_TEST(s.size()==sa&&std::equal(s.begin(),s.end(),&a[0]));

  s.assign((const int*)(&a[0]),(const int*)(&a[sa]));
  BOOST_TEST(s.size()==sa&&std::equal(s.begin(),s.end(),&a[0]));

#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
  s.assign({0,1,2,3,4,5});
#else
  s.assign(&a[0],&a[sa]);
#endif

  BOOST_TEST(s.size()==sa&&std::equal(s.begin(),s.end(),&a[0]));

  s.assign((std::size_t)18,37);
  BOOST_TEST(s.size()==18&&std::accumulate(s.begin(),s.end(),0)==666);

  s.assign((std::size_t)12,167);
  BOOST_TEST(s.size()==12&&std::accumulate(s.begin(),s.end(),0)==2004);
}

#if BOOST_WORKAROUND(__MWERKS__,<=0x3003)
#pragma parse_func_templ reset
#endif

template<typename Sequence>
static void test_integral_assign()
{
  /* Special cases described in 23.1.1/9: integral types must not
   * be taken as iterators in assign(f,l) and insert(p,f,l).
   */

  Sequence s;

  s.assign(5,10);
  BOOST_TEST(s.size()==5&&std::accumulate(s.begin(),s.end(),0)==50);
  s.assign(2u,5u);
  BOOST_TEST(s.size()==2&&std::accumulate(s.begin(),s.end(),0)==10);

  s.clear();
  s.insert(s.begin(),5,10);
  BOOST_TEST(s.size()==5&&std::accumulate(s.begin(),s.end(),0)==50);
  s.insert(s.begin(),2u,5u);
  BOOST_TEST(s.size()==7&&std::accumulate(s.begin(),s.end(),0)==60);
}

employee_set produce_employee_set()
{
  employee_set es;
  es.insert(employee(0,"Petr",60,2837));
  es.insert(employee(1,"Jiri",25,2143));
  es.insert(employee(2,"Radka",40,4875));
  es.insert(employee(3,"Milan",38,3474));
  return es;
}

void test_copy_assignment()
{
  employee_set es;
  employee_set es2(es);

  employee_set::allocator_type al=es.get_allocator();
  al=get<1>(es).get_allocator();
  al=get<2>(es).get_allocator();
  al=get<3>(es).get_allocator();
  al=get<4>(es).get_allocator();
  al=get<5>(es).get_allocator();

  BOOST_TEST(es2.empty());

  es2.insert(employee(0,"Joe",31,1123));
  es2.insert(employee(1,"Robert",27,5601));
  es2.insert(employee(2,"John",40,7889));
  es2.insert(employee(2,"Aristotle",2388,3357)); /* clash */
  es2.insert(employee(3,"Albert",20,9012));
  es2.insert(employee(4,"John",57,1002));
  es2.insert(employee(0,"Andrew",60,2302));      /* clash */

  employee_set es3(es2);

  BOOST_TEST(es2==es3);
  BOOST_TEST(get<2>(es2)==get<2>(es3));
  BOOST_TEST(get<3>(es2)==get<3>(es3));
  BOOST_TEST(get<5>(es2)==get<5>(es3));

  employee_set es4=employee_set(non_std_allocator<employee>());
  employee_set_by_name& i1=get<name>(es4);
  i1=get<1>(es2);

  BOOST_TEST(es4==es2);

  employee_set es5=employee_set(employee_set::ctor_args_list());
  employee_set_by_age& i2=get<age>(es5);
  i2=get<2>(es2);

  BOOST_TEST(i2==get<2>(es2));

  employee_set es6;
  employee_set_as_inserted& i3=get<as_inserted>(es6);
  i3=get<3>(es2);

  BOOST_TEST(i3==get<3>(es2));

  employee_set es7;
  employee_set_randomly& i5=get<randomly>(es7);
  i5=get<5>(es2);

  BOOST_TEST(i5==get<5>(es2));

#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)&&\
    !BOOST_WORKAROUND(BOOST_MSVC,==1800) /* MSVC 12.0 chokes on what follows */
  employee_set es8({{0,"Rose",40,4512},{1,"Mary",38,3345},{2,"Jo",25,7102}});
  employee_set es9;
  es9={{0,"Rose",40,4512},{1,"Mary",38,3345},{2,"Jo",25,7102},
       {0,"Rose",40,4512}};

  BOOST_TEST(es8.size()==3);
  BOOST_TEST(es9==es8);

  es9.clear();
  get<0>(es9)={{0,"Rose",40,4512},{1,"Mary",38,3345},{2,"Jo",25,7102},
               {0,"Rose",40,4512}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<0>(es9)={{0,"Rose",40,4512},{2,"Jo",25,7102},{1,"Mary",38,3345}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<1>(es9)={{1,"Mary",38,3345},{0,"Rose",40,4512},{2,"Jo",25,7102},
               {0,"Rose",40,4512}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<2>(es9)={{2,"Jo",25,7102},{0,"Rose",40,4512},{1,"Mary",38,3345}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<3>(es9)={{0,"Rose",40,4512},{1,"Mary",38,3345},{1,"Mary",38,3345},
               {2,"Jo",25,7102}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<4>(es9)={{1,"Mary",38,3345},{2,"Jo",25,7102},{0,"Rose",40,4512}};
  BOOST_TEST(es9==es8);

  es9.clear();
  get<5>(es9)={{1,"Mary",38,3345},{2,"Jo",25,7102},{0,"Rose",40,4512},
               {2,"Jo",25,7102}};
  BOOST_TEST(es9==es8);
#endif

  employee_set es10(produce_employee_set()),es11(produce_employee_set());
  BOOST_TEST(es10==es11);

  employee_set es12(boost::move(es10));
  BOOST_TEST(es10.empty());
  BOOST_TEST(es11==es12);

  es10=boost::move(es12);
  BOOST_TEST(es12.empty());
  BOOST_TEST(es11==es10);

  std::list<employee> l;
  l.push_back(employee(3,"Anna",31,5388));
  l.push_back(employee(1,"Rachel",27,9012));
  l.push_back(employee(2,"Agatha",40,1520));

  employee_set es13(l.begin(),l.end());

  l.sort();

  BOOST_TEST(es13.size()==l.size()&&
              std::equal(es13.begin(),es13.end(),l.begin()));

  test_assign<multi_index_container<int,indexed_by<sequenced<> > > >();
  test_integral_assign<
    multi_index_container<int,indexed_by<sequenced<> > > >();

  test_assign<multi_index_container<int,indexed_by<random_access<> > > >();
  test_integral_assign<
    multi_index_container<int,indexed_by<random_access<> > > >();

  /* Testcase for problem described at  http://www.boost.org/doc/html/move/
   * emulation_limitations.html#move.emulation_limitations.assignment_operator
   */

  holder h((holder()));
  h=holder();

#if !defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
{
  /* testcase for https://svn.boost.org/trac10/ticket/13518 */

  multi_index_container<int> x={};
}
#endif

  typedef small_allocator<int> small_alloc;
  typedef multi_index_container<
    int,
    indexed_by<
      ordered_unique<identity<int> >,
      ranked_unique<identity<int> >,
      hashed_unique<identity<int> >,
      sequenced<>,
      random_access<>
    >,
    small_alloc
  > small_container;
  typedef small_container::nth_index<0>::type small_container_0;
  typedef small_container::nth_index<1>::type small_container_1;
  typedef small_container::nth_index<2>::type small_container_2;
  typedef small_container::nth_index<3>::type small_container_3;
  typedef small_container::nth_index<4>::type small_container_4;

  BOOST_STATIC_ASSERT((
    boost::is_same<small_container::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container::difference_type,small_alloc::difference_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<small_container_0::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container_0::difference_type,small_alloc::difference_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<small_container_1::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container_1::difference_type,small_alloc::difference_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<small_container_2::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container_2::difference_type,small_alloc::difference_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<small_container_3::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container_3::difference_type,small_alloc::difference_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<small_container_4::size_type,small_alloc::size_type>::value));
  BOOST_STATIC_ASSERT((
    boost::is_same<
      small_container_4::difference_type,small_alloc::difference_type>::value));

  small_container        sc;
  small_container_0&     sc0=sc.get<0>();
  small_container_1&     sc1=sc.get<1>();
  small_container_2&     sc2=sc.get<2>();
  small_container_3&     sc3=sc.get<3>();
  small_container_4&     sc4=sc.get<4>();
  small_alloc::size_type s,
                         ms=(small_alloc::size_type)(-1);

  sc.insert(0);

  s=sc0.size();
  BOOST_TEST(sc0.max_size()<=ms);
  s=sc0.erase(1);
  s=sc0.count(0);
  s=sc0.count(0,std::less<int>());

  s=sc1.size();
  BOOST_TEST(sc1.max_size()<=ms);
  s=sc1.erase(1);
  s=sc1.count(0);
  s=sc1.count(0,std::less<int>());
  (void)sc1.nth(s);
  s=sc1.rank(sc1.begin());
  s=sc1.find_rank(0);
  s=sc1.find_rank(0,std::less<int>());
  s=sc1.lower_bound_rank(0);
  s=sc1.lower_bound_rank(0,std::less<int>());
  s=sc1.upper_bound_rank(0);
  s=sc1.upper_bound_rank(0,std::less<int>());
  s=sc1.equal_range_rank(0).first;
  s=sc1.equal_range_rank(0).second;
  s=sc1.range_rank(unbounded,unbounded).first;
  s=sc1.range_rank(unbounded,unbounded).second;

  s=sc2.size();
  BOOST_TEST(sc2.max_size()<=ms);
  s=sc2.erase(1);
  s=sc2.count(0);
  s=sc2.count(0,boost::hash<int>(),std::equal_to<int>());
  s=sc2.bucket_count();
  BOOST_TEST(sc2.max_bucket_count()<=ms);
  BOOST_TEST(sc2.bucket_size((small_alloc::size_type)(0))<=ms);
  BOOST_TEST(sc2.bucket_size(0)<=ms);
  (void)sc2.begin(0);
  (void)sc2.end(0);
  (void)sc2.cbegin(0);
  (void)sc2.cend(0);
  sc2.rehash(2);
  sc2.reserve(2);

  s=sc3.size();
  BOOST_TEST(sc3.max_size()<=ms);
  sc3.resize(0);
  sc3.resize(0,0);
  sc3.assign((small_alloc::size_type)(1),0);
  sc3.insert(sc3.begin(),(small_alloc::size_type)(0),0);

  s=sc4.size();
  BOOST_TEST(sc4.max_size()<=ms);
  BOOST_TEST(sc4.capacity()<=ms);
  sc4.reserve(0);
  sc4.resize(0);
  sc4.resize(0,0);
  sc4.assign((small_alloc::size_type)(1),0);
  (void)sc4[0];
  (void)sc4.at(0);
  sc4.insert(sc4.begin(),(small_alloc::size_type)(0),0);
}