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

llvm-svn: 315809

4 files changed, 8 insertions, 0 deletions

diff --git a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iter.ops/move.iter.op.const/default.pass.cpp b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iter.ops/move.iter.op.const/default.pass.cpp
index ba1406ada28..404e02cd7b1 100644
--- a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iter.ops/move.iter.op.const/default.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iter.ops/move.iter.op.const/default.pass.cpp
@@ -25,6 +25,7 @@ void
 test()
 {
     std::move_iterator<It> r;
+    (void)r;
 }
 
 int main()
@@ -38,6 +39,7 @@ int main()
 #if TEST_STD_VER > 14
     {
     constexpr std::move_iterator<const char *> it;
+    (void)it;
     }
 #endif
 }
diff --git a/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.cons/default.pass.cpp b/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.cons/default.pass.cpp
index 2162f8c2bce..88fd0def5a8 100644
--- a/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.cons/default.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.ops/reverse.iter.cons/default.pass.cpp
@@ -25,6 +25,7 @@ void
 test()
 {
     std::reverse_iterator<It> r;
+    (void)r;
 }
 
 int main()
@@ -37,6 +38,7 @@ int main()
 #if TEST_STD_VER > 14
     {
         constexpr std::reverse_iterator<const char *> it;
+        (void)it;
     }
 #endif
 }
diff --git a/libcxx/test/std/iterators/stream.iterators/istream.iterator/istream.iterator.cons/default.pass.cpp b/libcxx/test/std/iterators/stream.iterators/istream.iterator/istream.iterator.cons/default.pass.cpp
index 22f2967f328..10bba08ea41 100644
--- a/libcxx/test/std/iterators/stream.iterators/istream.iterator/istream.iterator.cons/default.pass.cpp
+++ b/libcxx/test/std/iterators/stream.iterators/istream.iterator/istream.iterator.cons/default.pass.cpp
@@ -32,6 +32,7 @@ template <typename T, bool isTrivial = std::is_trivially_default_constructible_v
 struct test_trivial {
 void operator ()() const {
     constexpr std::istream_iterator<T> it;
+    (void)it;
     }
 };
 
@@ -50,6 +51,7 @@ int main()
     assert(it == T());
 #if TEST_STD_VER >= 11
     constexpr T it2;
+    (void)it2;
 #endif
     }
 
diff --git a/libcxx/test/std/iterators/stream.iterators/istreambuf.iterator/istreambuf.iterator.cons/default.pass.cpp b/libcxx/test/std/iterators/stream.iterators/istreambuf.iterator/istreambuf.iterator.cons/default.pass.cpp
index 74aa6f2ab51..c71ee409969 100644
--- a/libcxx/test/std/iterators/stream.iterators/istreambuf.iterator/istreambuf.iterator.cons/default.pass.cpp
+++ b/libcxx/test/std/iterators/stream.iterators/istreambuf.iterator/istreambuf.iterator.cons/default.pass.cpp
@@ -30,6 +30,7 @@ int main()
         assert(it == T());
 #if TEST_STD_VER >= 11
         constexpr T it2;
+        (void)it2;
 #endif
     }
     {
@@ -38,6 +39,7 @@ int main()
         assert(it == T());
 #if TEST_STD_VER >= 11
         constexpr T it2;
+        (void)it2;
 #endif
     }
 }