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// Range v3 library
//
// Copyright Eric Niebler 2014-present
// Copyright Gonzalo Brito Gadeschi 2017
//
// 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 <vector>
#include <range/v3/algorithm/equal.hpp>
#include <range/v3/view/c_str.hpp>
#include <range/v3/view/iota.hpp>
#include <range/v3/core.hpp>
#include "../simple_test.hpp"
int main()
{
{
std::vector<int> vi{1,2,3,4};
CHECK(ranges::index(vi, 0) == 1);
CHECK(ranges::index(vi, 1) == 2);
CHECK(ranges::index(vi, 2) == 3);
CHECK(ranges::index(vi, 3) == 4);
CHECK(ranges::at(vi, 0) == 1);
CHECK(ranges::at(vi, 1) == 2);
CHECK(ranges::at(vi, 2) == 3);
CHECK(ranges::at(vi, 3) == 4);
try
{
ranges::at(vi, 4);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("ranges::at")));
}
try
{
ranges::at(vi, -1);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("ranges::at")));
}
auto viv = ranges::make_subrange(vi.begin(), vi.end());
CHECK(viv.at(0) == 1);
CHECK(viv.at(1) == 2);
CHECK(viv.at(2) == 3);
CHECK(viv.at(3) == 4);
try
{
viv.at(4);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("view_interface::at")));
}
try
{
viv.at(-1);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("view_interface::at")));
}
const auto cviv = viv;
CHECK(cviv.at(0) == 1);
CHECK(cviv.at(1) == 2);
CHECK(cviv.at(2) == 3);
CHECK(cviv.at(3) == 4);
try
{
cviv.at(4);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("view_interface::at")));
}
try
{
cviv.at(-1);
CHECK(false);
}
catch(std::out_of_range const& e)
{
CHECK(ranges::equal(ranges::views::c_str(e.what()),
ranges::views::c_str("view_interface::at")));
}
}
{
auto rng = ranges::views::ints(std::int64_t{0}, std::numeric_limits<std::int64_t>::max());
CHECK(ranges::index(rng, std::numeric_limits<std::int64_t>::max() - 1) ==
std::numeric_limits<std::int64_t>::max() - 1);
CHECK(ranges::at(rng, std::numeric_limits<std::int64_t>::max() - 1) ==
std::numeric_limits<std::int64_t>::max() - 1);
}
#if RANGES_CXX_CONSTEXPR >= RANGES_CXX_CONSTEXPR_14
{
constexpr int vi[4] = {1, 2, 3, 4};
constexpr int vi0 = ranges::index(vi, 0);
static_assert(vi0 == 1, "");
constexpr int vi1 = ranges::at(vi, 1);
static_assert(vi1 == 2, "");
}
#endif
return ::test_result();
}
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