Placate unused variable warnings uncovered by improvements to clang's -Wunused-variable

llvm-svn: 315809

5 files changed, 7 insertions, 0 deletions

diff --git a/libcxx/test/std/utilities/optional/optional.syn/optional_includes_initializer_list.pass.cpp b/libcxx/test/std/utilities/optional/optional.syn/optional_includes_initializer_list.pass.cpp
index 687625e8b67..57903020fed 100644
--- a/libcxx/test/std/utilities/optional/optional.syn/optional_includes_initializer_list.pass.cpp
+++ b/libcxx/test/std/utilities/optional/optional.syn/optional_includes_initializer_list.pass.cpp
@@ -19,4 +19,5 @@ int main()
     using std::optional;
 
     std::initializer_list<int> list;
+    (void)list;
 }
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/UTypes.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/UTypes.pass.cpp
index 06284df5664..fed27aa84ff 100644
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/UTypes.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/UTypes.pass.cpp
@@ -147,6 +147,7 @@ int main()
 #if TEST_STD_VER > 11
     {
         constexpr std::tuple<Empty> t0{Empty()};
+        (void)t0;
     }
     {
         constexpr std::tuple<A, A> t(3, 2);
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc.pass.cpp
index b262f3cacec..bf66da1626a 100644
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc.pass.cpp
@@ -102,6 +102,8 @@ int main()
         using T = NonDefaultConstructible<>;
         T v(42);
         std::tuple<T, T> t(v, v);
+        (void)t;
         std::tuple<T, T> t2(42, 42);
+        (void)t2;
     }
 }
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
index fa2f116f771..731946608ba 100644
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
@@ -49,6 +49,7 @@ int main()
 {
     {
         std::tuple<> t;
+        (void)t;
     }
     {
         std::tuple<int> t;
@@ -88,6 +89,7 @@ int main()
     }
     {
         constexpr std::tuple<> t;
+        (void)t;
     }
     {
         constexpr std::tuple<int> t;
diff --git a/libcxx/test/std/utilities/utility/synopsis.pass.cpp b/libcxx/test/std/utilities/utility/synopsis.pass.cpp
index 5f5b4eeaad5..009b65cbbe5 100644
--- a/libcxx/test/std/utilities/utility/synopsis.pass.cpp
+++ b/libcxx/test/std/utilities/utility/synopsis.pass.cpp
@@ -17,5 +17,6 @@
 int main()
 {
     std::initializer_list<int> x;
+    (void)x;
 }