[libc++] Require the use of clang-verify in .fail.cpp tests that don't fail without it
Some tests do not fail at all when -verify is not supported, unless some
arbitrary warning flag is added to make them fail. We currently used
-Werror=unused-result to make them fail, but doing so makes the test
suite a lot more inscrutable. It seems better to just disable those
tests when -verify is not supported.
Differential Revision: https://reviews.llvm.org/D76256
diff --git a/libcxx/test/std/containers/sequences/array/empty.fail.cpp b/libcxx/test/std/containers/sequences/array/empty.fail.cpp
index 3bbb3c8..cfb83c5 100644
--- a/libcxx/test/std/containers/sequences/array/empty.fail.cpp
+++ b/libcxx/test/std/containers/sequences/array/empty.fail.cpp
@@ -15,6 +15,7 @@
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
+// REQUIRES: verify-support
#include <array>
@@ -28,5 +29,5 @@
std::array<int, 0> c0;
c0.empty(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}
- return 0;
+ return 0;
}