mirror of
https://github.com/boostorg/hana.git
synced 2026-02-21 03:02:11 +00:00
37 lines
1.1 KiB
C++
37 lines
1.1 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/detail/assert.hpp>
|
|
#include <boost/hana/detail/constexpr.hpp>
|
|
#include <boost/hana/ext/std/integral_constant.hpp>
|
|
#include <boost/hana/functional.hpp>
|
|
#include <boost/hana/integer_list.hpp>
|
|
#include <boost/hana/integral.hpp>
|
|
#include <boost/hana/type.hpp>
|
|
#include <boost/hana/type_list.hpp>
|
|
|
|
#include <type_traits>
|
|
using namespace boost::hana;
|
|
using namespace literals;
|
|
|
|
|
|
int main() {
|
|
//! [main]
|
|
BOOST_HANA_CONSTEXPR_LAMBDA auto odd = [](auto x) {
|
|
return x % 2_c != 0_c;
|
|
};
|
|
|
|
constexpr auto types = type_list<int, char, long, short, char, double>;
|
|
constexpr auto ints = integer_list<int, 1, 2, 3>;
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(count(ints, odd) == 2_c);
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(count(types, trait<std::is_floating_point>) == 1_c);
|
|
BOOST_HANA_CONSTANT_ASSERT(count(types, _ == type<char>) == 2_c);
|
|
BOOST_HANA_CONSTANT_ASSERT(count(types, _ == type<void>) == 0_c);
|
|
//! [main]
|
|
}
|