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
73 lines
2.1 KiB
C++
73 lines
2.1 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)
|
|
//
|
|
// Project home: https://github.com/ericniebler/range-v3
|
|
|
|
#include <functional>
|
|
#include <iterator>
|
|
#include <range/v3/core.hpp>
|
|
#include <range/v3/utility/copy.hpp>
|
|
#include <range/v3/view/counted.hpp>
|
|
#include <range/v3/view/partial_sum.hpp>
|
|
#include <range/v3/view/reverse.hpp>
|
|
#include "../simple_test.hpp"
|
|
#include "../test_utils.hpp"
|
|
|
|
int main()
|
|
{
|
|
using namespace ranges;
|
|
|
|
int rgi[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
|
|
|
|
{
|
|
auto rng = rgi | views::partial_sum;
|
|
has_type<int &>(*begin(rgi));
|
|
has_type<int>(*begin(rng));
|
|
CPP_assert(view_<decltype(rng)>);
|
|
CPP_assert(sized_range<decltype(rng)>);
|
|
CPP_assert(forward_range<decltype(rng)>);
|
|
CPP_assert(!bidirectional_range<decltype(rng)>);
|
|
::check_equal(rng, {1, 3, 6, 10, 15, 21, 28, 36, 45, 55});
|
|
|
|
auto it = begin(rng);
|
|
CHECK(*it == 1);
|
|
auto it2 = next(it);
|
|
CHECK(*it == 1);
|
|
CHECK(*it2 == 3);
|
|
it2 = it;
|
|
CHECK(*it2 == 1);
|
|
++it2;
|
|
CHECK(*it2 == 3);
|
|
}
|
|
|
|
{
|
|
// Test partial_sum with a mutable lambda
|
|
int cnt = 0;
|
|
auto mutable_rng = views::partial_sum(rgi, [cnt](int i, int j) mutable { return i + j + cnt++;});
|
|
::check_equal(mutable_rng, {1, 3, 7, 13, 21, 31, 43, 57, 73, 91});
|
|
CHECK(cnt == 0);
|
|
CPP_assert(view_<decltype(mutable_rng)>);
|
|
CPP_assert(!view_<decltype(mutable_rng) const>);
|
|
}
|
|
|
|
{
|
|
auto rng = debug_input_view<int const>{rgi} | views::partial_sum;
|
|
::check_equal(rng, {1, 3, 6, 10, 15, 21, 28, 36, 45, 55});
|
|
}
|
|
|
|
{
|
|
static int const some_ints[] = {0,1,2,3,4};
|
|
auto t1 = ranges::views::partial_sum(some_ints);
|
|
auto t2 = some_ints | ranges::views::partial_sum;
|
|
::check_equal(t1, t2);
|
|
}
|
|
|
|
return test_result();
|
|
}
|