Implement is_error_code_v and is_error_condition_v for c++17. Rework the tests for is_error_code and is_error_condition, since they were really lacking. Thanks to Alisdair for the heads-up that we were missing these.

llvm-svn: 282331

1 files changed, 5 insertions, 1 deletions

diff --git a/libcxx/test/std/thread/futures/futures.overview/is_error_code_enum_future_errc.pass.cpp b/libcxx/test/std/thread/futures/futures.overview/is_error_code_enum_future_errc.pass.cpp
index 499de52598b..8a3987cb512 100644
--- a/libcxx/test/std/thread/futures/futures.overview/is_error_code_enum_future_errc.pass.cpp
+++ b/libcxx/test/std/thread/futures/futures.overview/is_error_code_enum_future_errc.pass.cpp
@@ -14,8 +14,12 @@
 // template <> struct is_error_code_enum<future_errc> : public true_type {};
 
 #include <future>
+#include "test_macros.h"
 
 int main()
 {
-    static_assert(std::is_error_code_enum<std::future_errc>::value, "");
+    static_assert(std::is_error_code_enum  <std::future_errc>::value, "");
+#if TEST_STD_VER > 14
+    static_assert(std::is_error_code_enum_v<std::future_errc>, "");
+#endif
 }