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C++ ranges::make_subrange方法代码示例

本文整理汇总了C++中ranges::make_subrange方法的典型用法代码示例。如果您正苦于以下问题:C++ ranges::make_subrange方法的具体用法?C++ ranges::make_subrange怎么用?C++ ranges::make_subrange使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ranges的用法示例。


在下文中一共展示了ranges::make_subrange方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: test

template<class InIter, class OutIter, class InSent = InIter> void test()
{
    using ranges::partial_sum;
    using ranges::make_subrange;
    { // iterator
        int ir[] = {1, 3, 6, 10, 15};
        const unsigned s = sizeof(ir) / sizeof(ir[0]);
        int ia[] = {1, 2, 3, 4, 5};
        int ib[s] = {0};
        auto r = partial_sum(InIter(ia), InSent(ia + s), OutIter(ib));
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    { // range + output iterator
        int ir[] = {1, 3, 6, 10, 15};
        const unsigned s = sizeof(ir) / sizeof(ir[0]);
        int ia[] = {1, 2, 3, 4, 5};
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto r = partial_sum(rng, OutIter(ib));
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    { // range + output range
        int ir[] = {1, 3, 6, 10, 15};
        const unsigned s = sizeof(ir) / sizeof(ir[0]);
        int ia[] = {1, 2, 3, 4, 5};
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto orng = make_subrange(OutIter(ib), OutIter(ib + s));
        auto r = partial_sum(rng, orng);
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    {
        int ia[] = {1, 2, 3, 4, 5};
        int ir[] = {1, -1, -4, -8, -13};
        const unsigned s = sizeof(ia) / sizeof(ia[0]);
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto orng = make_subrange(OutIter(ib), OutIter(ib + s));
        auto r = partial_sum(rng, orng, std::minus<int>());
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }
}
开发者ID:ericniebler,项目名称:range-v3,代码行数:65,代码来源:partial_sum.cpp

示例2: test

template<class InIter, class OutIter, class InSent = InIter> void test()
{
    using ranges::adjacent_difference;
    using ranges::make_subrange;
    { // iterator
        int ia[] = {15, 10, 6, 3, 1};
        int ir[] = {15, -5, -4, -3, -2};
        const unsigned s = sizeof(ia) / sizeof(ia[0]);
        int ib[s] = {0};
        auto r = adjacent_difference(InIter(ia), InSent(ia + s), OutIter(ib));
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    { // range + output iterator
        int ia[] = {15, 10, 6, 3, 1};
        int ir[] = {15, -5, -4, -3, -2};
        const unsigned s = sizeof(ia) / sizeof(ia[0]);
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto r = adjacent_difference(rng, OutIter(ib));
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    { // range + output range
        int ia[] = {15, 10, 6, 3, 1};
        int ir[] = {15, -5, -4, -3, -2};
        const unsigned s = sizeof(ia) / sizeof(ia[0]);
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto orng = make_subrange(OutIter(ib), OutIter(ib + s));
        auto r = adjacent_difference(rng, orng);
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }

    {
        int ia[] = {15, 10, 6, 3, 1};
        int ir[] = {15, 25, 16, 9, 4};
        const unsigned s = sizeof(ia) / sizeof(ia[0]);
        int ib[s] = {0};
        auto rng = make_subrange(InIter(ia), InSent(ia + s));
        auto orng = make_subrange(OutIter(ib), OutIter(ib + s));
        auto r = adjacent_difference(rng, orng, std::plus<int>());
        CHECK(base(r.in) == ia + s);
        CHECK(base(r.out) == ib + s);
        for(unsigned i = 0; i < s; ++i)
        {
            CHECK(ib[i] == ir[i]);
        }
    }
}
开发者ID:ericniebler,项目名称:range-v3,代码行数:65,代码来源:adjacent_difference.cpp


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