Add checks to make sure the hash functor has the right typedefs

llvm-svn: 225429

1 files changed, 4 insertions, 0 deletions

diff --git a/libcxx/test/std/utilities/type.index/type.index.hash/hash.pass.cpp b/libcxx/test/std/utilities/type.index/type.index.hash/hash.pass.cpp
index 259f313db18..c5ffacfa37e 100644
--- a/libcxx/test/std/utilities/type.index/type.index.hash/hash.pass.cpp
+++ b/libcxx/test/std/utilities/type.index/type.index.hash/hash.pass.cpp
@@ -23,6 +23,10 @@
 
 int main()
 {
+    typedef std::hash<std::type_index> H;
+    static_assert((std::is_same<typename H::argument_type, std::type_index>::value), "" );
+    static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
+
     std::type_index t1 = typeid(int);
     assert(std::hash<std::type_index>()(t1) == t1.hash_code());
 }