1 // Copyright Louis Dionne 2013-2017
2 // Distributed under the Boost Software License, Version 1.0.
3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
4
5 #include <boost/hana/assert.hpp>
6 #include <boost/hana/drop_while.hpp>
7 #include <boost/hana/equal.hpp>
8 #include <boost/hana/integral_constant.hpp>
9 #include <boost/hana/less.hpp>
10 #include <boost/hana/negate.hpp>
11 #include <boost/hana/range.hpp>
12 #include <boost/hana/tuple.hpp>
13 namespace hana = boost::hana;
14 using namespace hana::literals;
15
16
__anon2c6e50cc0102(auto x) 17 auto negative = [](auto x) {
18 return x < hana::int_c<0>;
19 };
20
21 BOOST_HANA_CONSTANT_CHECK(
22 hana::drop_while(hana::make_range(hana::int_c<-3>, hana::int_c<6>), negative)
23 ==
24 hana::make_range(hana::int_c<0>, hana::int_c<6>)
25 );
26
27 BOOST_HANA_CONSTANT_CHECK(
28 hana::drop_while(hana::make_tuple(1_c, -2_c, 4_c, 5_c), negative)
29 ==
30 hana::make_tuple(1_c, -2_c, 4_c, 5_c)
31 );
32
main()33 int main() { }
34