Exemplos de as_lvalue em C++ (Cpp)

Exemplo n.º 1

Arquivo: swap_ranges.cpp Projeto: OhGameKillers/range-v3

void test_rng_3()
{
    int i[3] = {1, 2, 3};
    int j[3] = {4, 5, 6};
    std::pair<Iter1, Iter2> r = ranges::swap_ranges(as_lvalue(ranges::make_iterator_range(Iter1(i), Iter1(i+3))), Iter2(j));
    CHECK(base(r.first) == i+3);
    CHECK(base(r.second) == j+3);
    CHECK(i[0] == 4);
    CHECK(i[1] == 5);
    CHECK(i[2] == 6);
    CHECK(j[0] == 1);
    CHECK(j[1] == 2);
    CHECK(j[2] == 3);

    using Sent1 = typename sentinel_type<Iter1>::type;
    r = ranges::swap_ranges(as_lvalue(ranges::make_iterator_range(Iter1(j), Sent1(j+3))), Iter2(i));
    CHECK(base(r.first) == j+3);
    CHECK(base(r.second) == i+3);
    CHECK(i[0] == 1);
    CHECK(i[1] == 2);
    CHECK(i[2] == 3);
    CHECK(j[0] == 4);
    CHECK(j[1] == 5);
    CHECK(j[2] == 6);
}

Exemplo n.º 2

Arquivo: move_backward.cpp Projeto: mitsutaka-takeda/cmcstl2

void
test()
{
    {
        const int N = 1000;
        int ia[N];
        for(int i = 0; i < N; ++i)
            ia[i] = i;
        int ib[N] = {0};

        std::pair<InIter, OutIter> r = stl2::move_backward(InIter(ia), InIter(ia+N), OutIter(ib+N));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib);
        for(int i = 0; i < N; ++i)
            CHECK(ia[i] == ib[i]);
    }

    {
        const int N = 1000;
        int ia[N];
        for(int i = 0; i < N; ++i)
            ia[i] = i;
        int ib[N] = {0};

        std::pair<InIter, OutIter> r = stl2::move_backward(as_lvalue(stl2::ext::make_range(InIter(ia), InIter(ia+N))), OutIter(ib+N));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib);
        for(int i = 0; i < N; ++i)
            CHECK(ia[i] == ib[i]);
    }
}

Exemplo n.º 3

Arquivo: move.cpp Projeto: CaseyCarter/range-v3

void
test()
{
    {
        const int N = 1000;
        int ia[N];
        for(int i = 0; i < N; ++i)
            ia[i] = i;
        int ib[N] = {0};

        std::pair<InIter, OutIter> r = ranges::move(InIter(ia), Sent(ia+N), OutIter(ib));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib+N);
        for(int i = 0; i < N; ++i)
            CHECK(ia[i] == ib[i]);
    }

    {
        const int N = 1000;
        int ia[N];
        for(int i = 0; i < N; ++i)
            ia[i] = i;
        int ib[N] = {0};

        std::pair<InIter, OutIter> r = ranges::move(as_lvalue(ranges::make_iterator_range(InIter(ia), Sent(ia+N))), OutIter(ib));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib+N);
        for(int i = 0; i < N; ++i)
            CHECK(ia[i] == ib[i]);
    }
}

Exemplo n.º 4

Arquivo: swap_ranges.cpp Projeto: OhGameKillers/range-v3

void test_rng_4()
{
    int i[3] = {1, 2, 3};
    int j[4] = {4, 5, 6, 7};
    std::pair<Iter1, Iter2> r = ranges::swap_ranges(
        as_lvalue(ranges::make_iterator_range(Iter1(i), Iter1(i+3))),
        as_lvalue(ranges::make_iterator_range(Iter2(j), Iter2(j+4))));
    CHECK(base(r.first) == i+3);
    CHECK(base(r.second) == j+3);
    CHECK(i[0] == 4);
    CHECK(i[1] == 5);
    CHECK(i[2] == 6);
    CHECK(j[0] == 1);
    CHECK(j[1] == 2);
    CHECK(j[2] == 3);
    CHECK(j[3] == 7);

    using Sent1 = typename sentinel_type<Iter1>::type;
    using Sent2 = typename sentinel_type<Iter2>::type;
    r = ranges::swap_ranges(
        as_lvalue(ranges::make_iterator_range(Iter1(j), Sent1(j+4))),
        as_lvalue(ranges::make_iterator_range(Iter2(i), Sent2(i+3))));
    CHECK(base(r.first) == j+3);
    CHECK(base(r.second) == i+3);
    CHECK(i[0] == 1);
    CHECK(i[1] == 2);
    CHECK(i[2] == 3);
    CHECK(j[0] == 4);
    CHECK(j[1] == 5);
    CHECK(j[2] == 6);
    CHECK(j[3] == 7);

    auto r2 = ranges::swap_ranges(
        ranges::make_iterator_range(Iter1(j), Sent1(j+4)),
        ranges::make_iterator_range(Iter2(i), Sent2(i+3)));
    CHECK(base(r2.first.get_unsafe()) == j+3);
    CHECK(base(r2.second.get_unsafe()) == i+3);
    CHECK(i[0] == 4);
    CHECK(i[1] == 5);
    CHECK(i[2] == 6);
    CHECK(j[0] == 1);
    CHECK(j[1] == 2);
    CHECK(j[2] == 3);
    CHECK(j[3] == 7);
}

Exemplo n.º 5

Arquivo: move_backward.cpp Projeto: mitsutaka-takeda/cmcstl2

void
test1()
{
    {
        const int N = 100;
        std::unique_ptr<int> ia[N];
        for(int i = 0; i < N; ++i)
            ia[i].reset(new int(i));
        std::unique_ptr<int> ib[N];

        std::pair<InIter, OutIter> r = stl2::move_backward(InIter(ia), InIter(ia+N), OutIter(ib+N));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib);
        for(int i = 0; i < N; ++i)
        {
            CHECK(ia[i].get() == nullptr);
            CHECK(*ib[i] == i);
        }
    }

    {
        const int N = 100;
        std::unique_ptr<int> ia[N];
        for(int i = 0; i < N; ++i)
            ia[i].reset(new int(i));
        std::unique_ptr<int> ib[N];

        std::pair<InIter, OutIter> r = stl2::move_backward(as_lvalue(stl2::ext::make_range(InIter(ia), InIter(ia+N))), OutIter(ib+N));
        CHECK(base(r.first) == ia+N);
        CHECK(base(r.second) == ib);
        for(int i = 0; i < N; ++i)
        {
            CHECK(ia[i].get() == nullptr);
            CHECK(*ib[i] == i);
        }

        stl2::move_backward(ib, ib+N, ia+N);

        auto r2 = stl2::move_backward(stl2::ext::make_range(InIter(ia), InIter(ia+N)), OutIter(ib+N));
        CHECK(base(r2.first.get_unsafe()) == ia+N);
        CHECK(base(r2.second) == ib);
        for(int i = 0; i < N; ++i)
        {
            CHECK(ia[i].get() == nullptr);
            CHECK(*ib[i] == i);
        }
    }
}

Exemplo n.º 6

Arquivo: main.cpp Projeto: CCJY/coliru

int main() {
    A a(as_lvalue(foo()));
    return 0;
}

Exemplo n.º 7

Arquivo: main.cpp Projeto: CCJY/coliru

A foo() {
     A a;
     return as_lvalue(a);
}