[libcxx] P0604, invoke_result and is_invocable

Summary:
Introduce a new form of `result_of` without function type encoding.

Rename and split `is_callable/is_nothrow_callable` into `is_invocable/is_nothrow_invocable/is_invocable_r/is_nothrow_invocable_r` (and associated types accordingly)

Change function type encoding of previous `is_callable/is_nothrow_callable` traits to conventional template type parameter lists.


Reviewers: EricWF, mclow.lists, bebuch

Reviewed By: EricWF, bebuch

Subscribers: lichray, bebuch, cfe-commits

Differential Revision: https://reviews.llvm.org/D38831

llvm-svn: 320509

1 files changed, 2 insertions, 2 deletions

diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/non_enum.pass.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/non_enum.pass.cpp
index 72011f4773b..7b427b9ac1e 100644
--- a/libcxx/test/std/utilities/function.objects/unord.hash/non_enum.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/non_enum.pass.cpp
@@ -32,7 +32,7 @@ int main()
     static_assert(!std::is_copy_assignable<H>::value, "");
     static_assert(!std::is_move_assignable<H>::value, "");
 #if TEST_STD_VER > 14
-    static_assert(!std::is_callable<H(X&)>::value, "");
-    static_assert(!std::is_callable<H(X const&)>::value, "");
+    static_assert(!std::is_invocable<H, X&>::value, "");
+    static_assert(!std::is_invocable<H, X const&>::value, "");
 #endif
 }