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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/test/type/adl.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/type/adl.cpp b/src/boost/libs/hana/test/type/adl.cpp new file mode 100644 index 000000000..35a75c20c --- /dev/null +++ b/src/boost/libs/hana/test/type/adl.cpp @@ -0,0 +1,24 @@ +// Copyright Louis Dionne 2013-2017 +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) + +#include <boost/hana/type.hpp> +namespace hana = boost::hana; + + +template <bool b = false> +struct invalid { static_assert(b, "invalid must not be instantiated"); }; + +template <typename T> void adl(T) { } +template <typename T> void adl_pattern(hana::basic_type<T>) { } + + +int main() { + // ADL kicks in but `invalid<>` must not instantiated + adl(hana::type_c<invalid<>>); + adl_pattern(hana::type_c<invalid<>>); + + // ADL instantiates the types recursively, make sure that works too + adl(hana::typeid_(hana::type_c<invalid<>>)); + adl_pattern(hana::typeid_(hana::type_c<invalid<>>)); +} |