[libcxx-commits] [libcxx] [libc++][array] Applied `[[nodiscard]]` (PR #168829)

[Nikolas Klauser via libcxx-commits]

================
@@ -11,13 +11,61 @@
 // check that <array> functions are marked [[nodiscard]]
 
 #include <array>
+#include <utility>
 
-void array_test() {
-  std::array<int, 1> array;
-  array.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
+#include <test_macros.h>
+
+template <typename ArrT>
+void test_members() {
+  ArrT a{};
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philnik777 wrote:

I was more thinking that we'd only template on the size of the array. That's a bit more verbose, but I think that's be the most readable/obvious version of what's happening.

https://github.com/llvm/llvm-project/pull/168829