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Diffstat (limited to 'src/boost/libs/fusion/test/sequence/cons.cpp')
-rw-r--r-- | src/boost/libs/fusion/test/sequence/cons.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/boost/libs/fusion/test/sequence/cons.cpp b/src/boost/libs/fusion/test/sequence/cons.cpp new file mode 100644 index 000000000..88a04101c --- /dev/null +++ b/src/boost/libs/fusion/test/sequence/cons.cpp @@ -0,0 +1,95 @@ +/*============================================================================= + Copyright (c) 2001-2011 Joel de Guzman + Copyright (c) 2005 Eric Niebler + + 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 <string> +#include <boost/detail/lightweight_test.hpp> +#include <boost/fusion/container/list/cons.hpp> +#include <boost/fusion/container/generation/make_cons.hpp> +#include <boost/fusion/container/generation/cons_tie.hpp> +#include <boost/fusion/container/vector/vector.hpp> +#include <boost/fusion/container/generation/make_vector.hpp> +#include <boost/fusion/sequence/comparison/equal_to.hpp> +#include <boost/lambda/lambda.hpp> +#include <boost/fusion/algorithm/iteration/for_each.hpp> +#include <boost/fusion/algorithm/transformation/filter_if.hpp> +#include <boost/fusion/algorithm/transformation/push_front.hpp> +#include <boost/fusion/sequence/io/out.hpp> + +#include <boost/type_traits/is_same.hpp> +#include <boost/mpl/lambda.hpp> + +int +main() +{ + using namespace boost::fusion; + using boost::is_same; + namespace fusion = boost::fusion; + + std::cout << tuple_open('['); + std::cout << tuple_close(']'); + std::cout << tuple_delimiter(", "); + +/// Testing cons + + { + std::string hello("hello"); + cons<int, cons<std::string> > ns = + make_cons(1, make_cons(hello)); + + BOOST_TEST((*begin(ns) == 1)); + BOOST_TEST((*fusion::next(begin(ns)) == hello)); + + *begin(ns) += 1; + *fusion::next(begin(ns)) += ' '; + + BOOST_TEST((*begin(ns) == 2)); + BOOST_TEST((*fusion::next(begin(ns)) == hello + ' ')); + + for_each(ns, boost::lambda::_1 += ' '); + + BOOST_TEST((*begin(ns) == 2 + ' ')); + BOOST_TEST((*fusion::next(begin(ns)) == hello + ' ' + ' ')); + } + + { + BOOST_TEST( + make_cons("hello") == make_vector(std::string("hello")) + ); + + BOOST_TEST( + make_cons(123, make_cons("hello")) == + make_vector(123, std::string("hello")) + ); + } + + { + vector<int, float> t(1, 1.1f); + cons<int, cons<float> > nf = + make_cons(1, make_cons(1.1f)); + + BOOST_TEST((t == nf)); + BOOST_TEST((vector<int>(1) == filter_if<is_same<boost::mpl::_, int> >(nf))); + + std::cout << nf << std::endl; + std::cout << filter_if<is_same<boost::mpl::_, int> >(nf) << std::endl; + } + + { + int i = 3; + cons<int&> tie(cons_tie(i)); + BOOST_TEST((*begin(tie) == 3)); + } + + { + // This used to trigger a hard compilation error: + cons<cons<int> > xs; + begin(push_front(xs, 3)); + } + + return boost::report_errors(); +} + |