2
0
mirror of https://github.com/boostorg/hana.git synced 2026-02-21 03:02:11 +00:00
Files
hana/example/iterable/drop.cpp
Louis Dionne 307d3d0ec8 Huge reorganization and refactoring.
- Split type class instances into separate files
- Instances provided automatically by a type class are actually MCDs
- Test each instance in a single file, not one file per method
- Refactor the operator system to fix the ADL-related bug.
2014-08-18 19:26:29 -04:00

24 lines
777 B
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/integral.hpp>
#include <boost/hana/tuple.hpp>
using namespace boost::hana;
int main() {
//! [main]
BOOST_HANA_CONSTEXPR_LAMBDA auto xs = list(0, '1', 2.0);
BOOST_HANA_CONSTEXPR_ASSERT(drop(int_<0>, xs) == xs);
BOOST_HANA_CONSTEXPR_ASSERT(drop(int_<1>, xs) == list('1', 2.0));
BOOST_HANA_CONSTEXPR_ASSERT(drop(int_<2>, xs) == list(2.0));
BOOST_HANA_CONSTANT_ASSERT(drop(int_<3>, xs) == list());
BOOST_HANA_CONSTANT_ASSERT(drop(int_<4>, xs) == list());
//! [main]
}