detail/test/blank_test.cpp
Daniel James adaa82e03e Add some tests
Test classes which I'm going to remove the MPL dependency from: blank,
allocator_utilities, is_xxx and reference_content.  I'm also going to change
indirect_traits, but that's tested in the python module.
2018-04-08 20:55:38 +01:00

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// Copyright 2018 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/blank.hpp>
#include <boost/static_assert.hpp>
#include <cassert>
#if !defined(BOOST_NO_IOSTREAM)
#include <sstream>
#endif
int main() {
BOOST_STATIC_ASSERT((boost::is_pod<boost::blank>::value));
BOOST_STATIC_ASSERT((boost::is_empty<boost::blank>::value));
BOOST_STATIC_ASSERT((boost::is_stateless<boost::blank>::value));
boost::blank b1,b2;
assert(b1 == b2);
assert(b1 <= b2);
assert(b1 >= b2);
assert(!(b1 != b2));
assert(!(b1 < b2));
assert(!(b1 > b2));
#if !defined(BOOST_NO_IOSTREAM)
std::stringstream s;
s << "(" << b1 << ")";
assert(s.str() == "()");
#endif
}