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Diffstat (limited to 'src/boost/libs/yap/example/minimal.cpp')
-rw-r--r-- | src/boost/libs/yap/example/minimal.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/boost/libs/yap/example/minimal.cpp b/src/boost/libs/yap/example/minimal.cpp new file mode 100644 index 00000000..d79e372f --- /dev/null +++ b/src/boost/libs/yap/example/minimal.cpp @@ -0,0 +1,42 @@ +// Copyright (C) 2016-2018 T. Zachary Laine +// +// 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/yap/algorithm.hpp> + +#include <array> +#include <iostream> + + +//[ minimal_template +template <boost::yap::expr_kind Kind, typename Tuple> +struct minimal_expr +{ + static const boost::yap::expr_kind kind = Kind; + + Tuple elements; +}; +//] + + +int main() +{ +//[ minimal_template_manual_construction + auto left = boost::yap::make_terminal<minimal_expr>(1); + auto right = boost::yap::make_terminal<minimal_expr>(41); + + auto expr = boost::yap::make_expression< + minimal_expr, + boost::yap::expr_kind::plus + >(left, right); +//] + +//[ minimal_template_evaluation + auto result = boost::yap::evaluate(expr); + + std::cout << result << "\n"; // prints "42" +//] + + return 0; +} |