deduction.cc: Avoid -Wreturn-type warnings.

2017-11-06  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/20_util/optional/cons/deduction.cc: Avoid -Wreturn-type
	warnings.
	* testsuite/20_util/pair/cons/deduction.cc: Likewise.
	* testsuite/20_util/pair/traits.cc: Likewise.
	* testsuite/20_util/tuple/cons/deduction.cc: Likewise.
	* testsuite/20_util/variant/compile.cc: Likewise.
	* testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
	* testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
	Likewise.

From-SVN: r254450

8 files changed, 68 insertions, 54 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index c18a5be..70061e9 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,15 @@
+2017-11-06  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* testsuite/20_util/optional/cons/deduction.cc: Avoid -Wreturn-type
+	warnings.
+	* testsuite/20_util/pair/cons/deduction.cc: Likewise.
+	* testsuite/20_util/pair/traits.cc: Likewise.
+	* testsuite/20_util/tuple/cons/deduction.cc: Likewise.
+	* testsuite/20_util/variant/compile.cc: Likewise.
+	* testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
+	* testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
+	Likewise.
+
 2017-11-05  Gerald Pfeifer  <gerald@pfeifer.com>
 
 	* doc/xml/manual/abi.xml: Move docs.oracle.com references to https.
diff --git a/libstdc++-v3/testsuite/20_util/optional/cons/deduction.cc b/libstdc++-v3/testsuite/20_util/optional/cons/deduction.cc
index e15db0b..77d4ff8 100644
--- a/libstdc++-v3/testsuite/20_util/optional/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/20_util/optional/cons/deduction.cc
@@ -24,8 +24,8 @@
 struct MoveOnly
 {
   MoveOnly() = default;
-  MoveOnly(MoveOnly&&) {}
-  MoveOnly& operator=(MoveOnly&&) {}
+  MoveOnly(MoveOnly&&);
+  MoveOnly& operator=(MoveOnly&&);
 };
 
 int main()
diff --git a/libstdc++-v3/testsuite/20_util/pair/cons/deduction.cc b/libstdc++-v3/testsuite/20_util/pair/cons/deduction.cc
index 3831cf2..5071b13 100644
--- a/libstdc++-v3/testsuite/20_util/pair/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/20_util/pair/cons/deduction.cc
@@ -30,8 +30,8 @@ template<typename T, typename U>
 struct MoveOnly
 {
   MoveOnly() = default;
-  MoveOnly(MoveOnly&&) {}
-  MoveOnly& operator=(MoveOnly&&) {}
+  MoveOnly(MoveOnly&&);
+  MoveOnly& operator=(MoveOnly&&);
 };
 
 void
diff --git a/libstdc++-v3/testsuite/20_util/pair/traits.cc b/libstdc++-v3/testsuite/20_util/pair/traits.cc
index 25ba7ff..6948154 100644
--- a/libstdc++-v3/testsuite/20_util/pair/traits.cc
+++ b/libstdc++-v3/testsuite/20_util/pair/traits.cc
@@ -31,8 +31,8 @@ struct Poison
 
 struct ThrowingCopy
 {
-  ThrowingCopy(const ThrowingCopy&) {}
-  ThrowingCopy& operator=(const ThrowingCopy&) {}
+  ThrowingCopy(const ThrowingCopy&);
+  ThrowingCopy& operator=(const ThrowingCopy&);
 };
 
 int main()
diff --git a/libstdc++-v3/testsuite/20_util/tuple/cons/deduction.cc b/libstdc++-v3/testsuite/20_util/tuple/cons/deduction.cc
index 0804d55..2ca9709 100644
--- a/libstdc++-v3/testsuite/20_util/tuple/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/20_util/tuple/cons/deduction.cc
@@ -30,8 +30,8 @@ template<typename T, typename U>
 struct MoveOnly
 {
   MoveOnly() = default;
-  MoveOnly(MoveOnly&&) {}
-  MoveOnly& operator=(MoveOnly&&) {}
+  MoveOnly(MoveOnly&&);
+  MoveOnly& operator=(MoveOnly&&);
 };
 
 void
diff --git a/libstdc++-v3/testsuite/20_util/variant/compile.cc b/libstdc++-v3/testsuite/20_util/variant/compile.cc
index e5f7538..2aeec7d 100644
--- a/libstdc++-v3/testsuite/20_util/variant/compile.cc
+++ b/libstdc++-v3/testsuite/20_util/variant/compile.cc
@@ -481,37 +481,37 @@ void test_triviality()
     static_assert(MA_VAL == is_trivially_move_assignable_v<variant<A>>, ""); \
   }
   TEST_TEMPLATE(=default, =default, =default, =default, =default,  true,  true,  true,  true)
-  TEST_TEMPLATE(=default, =default, =default, =default,       {},  true,  true,  true, false)
-  TEST_TEMPLATE(=default, =default, =default,       {}, =default,  true,  true, false,  true)
-  TEST_TEMPLATE(=default, =default, =default,       {},       {},  true,  true, false, false)
-  TEST_TEMPLATE(=default, =default,       {}, =default, =default,  true, false,  true,  true)
-  TEST_TEMPLATE(=default, =default,       {}, =default,       {},  true, false,  true, false)
-  TEST_TEMPLATE(=default, =default,       {},       {}, =default,  true, false, false,  true)
-  TEST_TEMPLATE(=default, =default,       {},       {},       {},  true, false, false, false)
-  TEST_TEMPLATE(=default,       {}, =default, =default, =default, false,  true,  true,  true)
-  TEST_TEMPLATE(=default,       {}, =default, =default,       {}, false,  true,  true, false)
-  TEST_TEMPLATE(=default,       {}, =default,       {}, =default, false,  true, false,  true)
-  TEST_TEMPLATE(=default,       {}, =default,       {},       {}, false,  true, false, false)
-  TEST_TEMPLATE(=default,       {},       {}, =default, =default, false, false,  true,  true)
-  TEST_TEMPLATE(=default,       {},       {}, =default,       {}, false, false,  true, false)
-  TEST_TEMPLATE(=default,       {},       {},       {}, =default, false, false, false,  true)
-  TEST_TEMPLATE(=default,       {},       {},       {},       {}, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default, =default, =default, =default, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default, =default, =default,       {}, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default, =default,       {}, =default, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default, =default,       {},       {}, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default,       {}, =default, =default, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default,       {}, =default,       {}, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default,       {},       {}, =default, false, false, false, false)
-  TEST_TEMPLATE(      {}, =default,       {},       {},       {}, false, false, false, false)
-  TEST_TEMPLATE(      {},       {}, =default, =default, =default, false, false, false, false)
-  TEST_TEMPLATE(      {},       {}, =default, =default,       {}, false, false, false, false)
-  TEST_TEMPLATE(      {},       {}, =default,       {}, =default, false, false, false, false)
-  TEST_TEMPLATE(      {},       {}, =default,       {},       {}, false, false, false, false)
-  TEST_TEMPLATE(      {},       {},       {}, =default, =default, false, false, false, false)
-  TEST_TEMPLATE(      {},       {},       {}, =default,       {}, false, false, false, false)
-  TEST_TEMPLATE(      {},       {},       {},       {}, =default, false, false, false, false)
-  TEST_TEMPLATE(      {},       {},       {},       {},       {}, false, false, false, false)
+  TEST_TEMPLATE(=default, =default, =default, =default,         ,  true,  true,  true, false)
+  TEST_TEMPLATE(=default, =default, =default,         , =default,  true,  true, false,  true)
+  TEST_TEMPLATE(=default, =default, =default,         ,         ,  true,  true, false, false)
+  TEST_TEMPLATE(=default, =default,         , =default, =default,  true, false,  true,  true)
+  TEST_TEMPLATE(=default, =default,         , =default,         ,  true, false,  true, false)
+  TEST_TEMPLATE(=default, =default,         ,         , =default,  true, false, false,  true)
+  TEST_TEMPLATE(=default, =default,         ,         ,         ,  true, false, false, false)
+  TEST_TEMPLATE(=default,         , =default, =default, =default, false,  true,  true,  true)
+  TEST_TEMPLATE(=default,         , =default, =default,         , false,  true,  true, false)
+  TEST_TEMPLATE(=default,         , =default,         , =default, false,  true, false,  true)
+  TEST_TEMPLATE(=default,         , =default,         ,         , false,  true, false, false)
+  TEST_TEMPLATE(=default,         ,         , =default, =default, false, false,  true,  true)
+  TEST_TEMPLATE(=default,         ,         , =default,         , false, false,  true, false)
+  TEST_TEMPLATE(=default,         ,         ,         , =default, false, false, false,  true)
+  TEST_TEMPLATE(=default,         ,         ,         ,         , false, false, false, false)
+  TEST_TEMPLATE(        , =default, =default, =default, =default, false, false, false, false)
+  TEST_TEMPLATE(        , =default, =default, =default,         , false, false, false, false)
+  TEST_TEMPLATE(        , =default, =default,         , =default, false, false, false, false)
+  TEST_TEMPLATE(        , =default, =default,         ,         , false, false, false, false)
+  TEST_TEMPLATE(        , =default,         , =default, =default, false, false, false, false)
+  TEST_TEMPLATE(        , =default,         , =default,         , false, false, false, false)
+  TEST_TEMPLATE(        , =default,         ,         , =default, false, false, false, false)
+  TEST_TEMPLATE(        , =default,         ,         ,         , false, false, false, false)
+  TEST_TEMPLATE(        ,         , =default, =default, =default, false, false, false, false)
+  TEST_TEMPLATE(        ,         , =default, =default,         , false, false, false, false)
+  TEST_TEMPLATE(        ,         , =default,         , =default, false, false, false, false)
+  TEST_TEMPLATE(        ,         , =default,         ,         , false, false, false, false)
+  TEST_TEMPLATE(        ,         ,         , =default, =default, false, false, false, false)
+  TEST_TEMPLATE(        ,         ,         , =default,         , false, false, false, false)
+  TEST_TEMPLATE(        ,         ,         ,         , =default, false, false, false, false)
+  TEST_TEMPLATE(        ,         ,         ,         ,         , false, false, false, false)
 #undef TEST_TEMPLATE
 
 #define TEST_TEMPLATE(CC, MC, CA, MA) \
@@ -529,21 +529,21 @@ void test_triviality()
     static_assert(!is_trivially_move_assignable_v<variant<AllDeleted, A>>, ""); \
   }
   TEST_TEMPLATE(=default, =default, =default, =default)
-  TEST_TEMPLATE(=default, =default, =default,       {})
-  TEST_TEMPLATE(=default, =default,       {}, =default)
-  TEST_TEMPLATE(=default, =default,       {},       {})
-  TEST_TEMPLATE(=default,       {}, =default, =default)
-  TEST_TEMPLATE(=default,       {}, =default,       {})
-  TEST_TEMPLATE(=default,       {},       {}, =default)
-  TEST_TEMPLATE(=default,       {},       {},       {})
-  TEST_TEMPLATE(      {}, =default, =default, =default)
-  TEST_TEMPLATE(      {}, =default, =default,       {})
-  TEST_TEMPLATE(      {}, =default,       {}, =default)
-  TEST_TEMPLATE(      {}, =default,       {},       {})
-  TEST_TEMPLATE(      {},       {}, =default, =default)
-  TEST_TEMPLATE(      {},       {}, =default,       {})
-  TEST_TEMPLATE(      {},       {},       {}, =default)
-  TEST_TEMPLATE(      {},       {},       {},       {})
+  TEST_TEMPLATE(=default, =default, =default,         )
+  TEST_TEMPLATE(=default, =default,         , =default)
+  TEST_TEMPLATE(=default, =default,         ,         )
+  TEST_TEMPLATE(=default,         , =default, =default)
+  TEST_TEMPLATE(=default,         , =default,         )
+  TEST_TEMPLATE(=default,         ,         , =default)
+  TEST_TEMPLATE(=default,         ,         ,         )
+  TEST_TEMPLATE(        , =default, =default, =default)
+  TEST_TEMPLATE(        , =default, =default,         )
+  TEST_TEMPLATE(        , =default,         , =default)
+  TEST_TEMPLATE(        , =default,         ,         )
+  TEST_TEMPLATE(        ,         , =default, =default)
+  TEST_TEMPLATE(        ,         , =default,         )
+  TEST_TEMPLATE(        ,         ,         , =default)
+  TEST_TEMPLATE(        ,         ,         ,         )
 #undef TEST_TEMPLATE
 
   static_assert(is_trivially_copy_constructible_v<variant<DefaultNoexcept, int, char, float, double>>, "");
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
index e4c883c..22aa9d4 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
@@ -39,6 +39,7 @@ struct Val
   {
     val = other.val;
     other.moved_from_assign = true;
+    return *this;
   }
 };
 
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
index f123850..b07d44b 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
@@ -39,6 +39,7 @@ struct Val
   {
     val = other.val;
     other.moved_from_assign = true;
+    return *this;
   }
 };