mirror of
https://github.com/boostorg/hana.git
synced 2026-02-21 03:02:11 +00:00
307d3d0ec8
- 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.
23 lines
642 B
C++
23 lines
642 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/integral.hpp>
|
|
#include <boost/hana/tuple.hpp>
|
|
#include <boost/hana/maybe.hpp>
|
|
using namespace boost::hana;
|
|
|
|
|
|
int main() {
|
|
//! [main]
|
|
BOOST_HANA_CONSTANT_ASSERT(length(list()) == int_<0>);
|
|
BOOST_HANA_CONSTANT_ASSERT(length(list(1, '2', 3.0)) == int_<3>);
|
|
|
|
BOOST_HANA_CONSTANT_ASSERT(length(nothing) == int_<0>);
|
|
BOOST_HANA_CONSTANT_ASSERT(length(just('x')) == int_<1>);
|
|
//! [main]
|
|
}
|