xref: /llvm-project-15.0.7/libcxx/test/std/containers/associative/multiset/multiset.cons/move_alloc.pass.cpp (revision 3cd4531b)

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03

// <set>

// class multiset

// multiset(multiset&& s, const allocator_type& a);

#include <set>
#include <cassert>
#include <iterator>

#include "test_macros.h"
#include "MoveOnly.h"
#include "../../../test_compare.h"
#include "test_allocator.h"
#include "Counter.h"

int main(int, char**)
{
    {
        typedef MoveOnly V;
        typedef test_less<MoveOnly> C;
        typedef test_allocator<V> A;
        typedef std::multiset<MoveOnly, C, A> M;
        typedef std::move_iterator<V*> I;
        V a1[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m1(I(a1), I(a1+sizeof(a1)/sizeof(a1[0])), C(5), A(7));
        V a2[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m2(I(a2), I(a2+sizeof(a2)/sizeof(a2[0])), C(5), A(7));
        M m3(std::move(m1), A(7));
        assert(m3 == m2);
        assert(m3.get_allocator() == A(7));
        assert(m3.key_comp() == C(5));
        LIBCPP_ASSERT(m1.empty());
    }
    {
        typedef MoveOnly V;
        typedef test_less<MoveOnly> C;
        typedef test_allocator<V> A;
        typedef std::multiset<MoveOnly, C, A> M;
        typedef std::move_iterator<V*> I;
        V a1[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m1(I(a1), I(a1+sizeof(a1)/sizeof(a1[0])), C(5), A(7));
        V a2[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m2(I(a2), I(a2+sizeof(a2)/sizeof(a2[0])), C(5), A(7));
        M m3(std::move(m1), A(5));
        assert(m3 == m2);
        assert(m3.get_allocator() == A(5));
        assert(m3.key_comp() == C(5));
        LIBCPP_ASSERT(m1.empty());
    }
    {
        typedef MoveOnly V;
        typedef test_less<MoveOnly> C;
        typedef other_allocator<V> A;
        typedef std::multiset<MoveOnly, C, A> M;
        typedef std::move_iterator<V*> I;
        V a1[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m1(I(a1), I(a1+sizeof(a1)/sizeof(a1[0])), C(5), A(7));
        V a2[] =
        {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
        };
        M m2(I(a2), I(a2+sizeof(a2)/sizeof(a2[0])), C(5), A(7));
        M m3(std::move(m1), A(5));
        assert(m3 == m2);
        assert(m3.get_allocator() == A(5));
        assert(m3.key_comp() == C(5));
        LIBCPP_ASSERT(m1.empty());
    }
    {
        typedef Counter<int> V;
        typedef std::less<V> C;
        typedef test_allocator<V> A;
        typedef std::multiset<V, C, A> M;
        typedef V* I;
        Counter_base::gConstructed = 0;
        {
            V a1[] =
            {
            V(1),
            V(1),
            V(1),
            V(2),
            V(2),
            V(2),
            V(3),
            V(3),
            V(3)
            };
            const size_t num = sizeof(a1)/sizeof(a1[0]);
            assert(Counter_base::gConstructed == num);

            M m1(I(a1), I(a1+num), C(), A());
            assert(Counter_base::gConstructed == 2*num);

            M m2(m1);
            assert(m2 == m1);
            assert(Counter_base::gConstructed == 3*num);

            M m3(std::move(m1), A());
            assert(m3 == m2);
            LIBCPP_ASSERT(m1.empty());
            assert(Counter_base::gConstructed >= (int)(3*num));
            assert(Counter_base::gConstructed <= (int)(4*num));

            {
            M m4(std::move(m2), A(5));
            assert(Counter_base::gConstructed >= (int)(3*num));
            assert(Counter_base::gConstructed <= (int)(5*num));
            assert(m4 == m3);
            LIBCPP_ASSERT(m2.empty());
            }
            assert(Counter_base::gConstructed >= (int)(2*num));
            assert(Counter_base::gConstructed <= (int)(4*num));
        }
        assert(Counter_base::gConstructed == 0);
    }

  return 0;
}