1// Boost.Range library
2//
3// Copyright Neil Groves 2014. Use, modification and distribution is subject
4// to the Boost Software License, Version 1.0. (See accompanying file
5// LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// For more information, see http://www.boost.org/libs/range
9//
10
11#include "mock_range.hpp"
12#include <boost/range/adaptor/uniqued.hpp>
13
14int main(int, const char**)
15{
16 using boost::range::unit_test::mock_const_range;
17
18 // This next line should fail when Boost.Range concept checking is
19 // enabled since the adaptor takes at least a ForwardRange.
20 return boost::adaptors::unique(
21 rng: mock_const_range<boost::single_pass_traversal_tag>()).front();
22}
23

source code of boost/libs/range/test/compile_fail/adaptor/uniqued_concept4.cpp