afb81b8278
Some checks failed
Docker. / Ubuntu (push) Has been cancelled
User-agent updater. / User-agent (push) Failing after 15s
Lock Threads / lock (push) Failing after 10s
Waiting for answer. / waiting-for-answer (push) Failing after 22s
Needs user action. / needs-user-action (push) Failing after 8s
Can't reproduce. / cant-reproduce (push) Failing after 8s
Close stale issues and PRs / stale (push) Has been cancelled
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
// Range v3 library
|
|
//
|
|
// Copyright Eric Niebler 2014-present
|
|
//
|
|
// Use, modification and distribution is subject to 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 <array>
|
|
#include <vector>
|
|
#include <range/v3/core.hpp>
|
|
#include <range/v3/view/iota.hpp>
|
|
#include <range/v3/view/stride.hpp>
|
|
#include <range/v3/algorithm/copy.hpp>
|
|
#include <range/v3/algorithm/move.hpp>
|
|
#include <range/v3/algorithm/equal.hpp>
|
|
#include <range/v3/action/slice.hpp>
|
|
#include "../simple_test.hpp"
|
|
#include "../test_utils.hpp"
|
|
|
|
int main()
|
|
{
|
|
using namespace ranges;
|
|
{
|
|
auto v = views::ints(0, 100) | to<std::vector>();
|
|
|
|
auto v2 = v | copy | actions::slice(10, 20);
|
|
CHECK(size(v2) == 10u);
|
|
CPP_assert(same_as<decltype(v), decltype(v2)>);
|
|
::check_equal(v2, {10, 11, 12, 13, 14, 15, 16, 17, 18, 19});
|
|
|
|
v2 = v2 | move | actions::slice(2, 8);
|
|
::check_equal(v2, {12, 13, 14, 15, 16, 17});
|
|
|
|
v2 |= actions::slice(0, 0);
|
|
CHECK(v2.size() == 0u);
|
|
|
|
auto &v3 = actions::slice(v, 90, 100);
|
|
CHECK(&v3 == &v);
|
|
::check_equal(v, {90, 91, 92, 93, 94, 95, 96, 97, 98, 99});
|
|
}
|
|
|
|
{
|
|
auto rng = views::ints(0, 100) | to<std::vector>();
|
|
|
|
rng |= actions::slice(20, end - 70);
|
|
CHECK(size(rng) == 10u);
|
|
::check_equal(rng, {20, 21, 22, 23, 24, 25, 26, 27, 28, 29});
|
|
|
|
rng |= actions::slice(end - 10, end - 5);
|
|
CHECK(size(rng) == 5u);
|
|
::check_equal(rng, {20, 21, 22, 23, 24});
|
|
}
|
|
|
|
{
|
|
auto rng = views::ints(0, 100) | to<std::vector>();
|
|
|
|
auto &rng_copy = actions::slice(rng, 90, end);
|
|
CHECK(&rng_copy == &rng);
|
|
CHECK(size(rng_copy) == 10u);
|
|
::check_equal(rng, {90, 91, 92, 93, 94, 95, 96, 97, 98, 99});
|
|
|
|
rng |= actions::slice(end - 5, end);
|
|
CHECK(&rng_copy == &rng);
|
|
CHECK(size(rng_copy) == 5u);
|
|
::check_equal(rng, {95, 96, 97, 98, 99});
|
|
}
|
|
|
|
return ::test_result();
|
|
}
|