mirror of
https://github.com/boostorg/hana.git
synced 2026-01-24 05:52:14 +00:00
37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
/*
|
|
@copyright Louis Dionne 2014
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
|
|
#include <boost/hana/assert.hpp>
|
|
#include <boost/hana/detail/constexpr.hpp>
|
|
#include <boost/hana/integral.hpp>
|
|
#include <boost/hana/range.hpp>
|
|
using namespace boost::hana;
|
|
|
|
|
|
int main() {
|
|
//! [range_c]
|
|
BOOST_HANA_CONSTANT_ASSERT(head(range_c<int, 0, 5>) == int_<0>);
|
|
BOOST_HANA_CONSTANT_ASSERT(last(range_c<unsigned long, 0, 5>) == ulong<4>);
|
|
BOOST_HANA_CONSTANT_ASSERT(tail(range_c<int, 0, 5>) == range(int_<1>, int_<5>));
|
|
//! [range_c]
|
|
|
|
//! [iterable]
|
|
BOOST_HANA_CONSTEXPR_LAMBDA auto r = range(int_<0>, int_<1000>);
|
|
BOOST_HANA_CONSTANT_ASSERT(head(r) == int_<0>);
|
|
BOOST_HANA_CONSTANT_ASSERT(last(r) == int_<999>);
|
|
BOOST_HANA_CONSTANT_ASSERT(!is_empty(r));
|
|
BOOST_HANA_CONSTANT_ASSERT(is_empty(range(int_<3>, int_<3>)));
|
|
//! [iterable]
|
|
|
|
//! [range]
|
|
using namespace literals;
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(head(range(0_c, 5_c)) == 0_c);
|
|
BOOST_HANA_CONSTANT_ASSERT(last(range(0_c, 5_c)) == 4_c);
|
|
BOOST_HANA_CONSTANT_ASSERT(tail(range(0_c, 5_c)) == range(1_c, 5_c));
|
|
//! [range]
|
|
}
|