default.cc: Avoid -Wall warnings.

2008-06-25  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/29_atomics/atomic_flag/cons/default.cc: Avoid -Wall
	warnings.
	* testsuite/29_atomics/atomic_flag/cons/aggregate.cc: Likewise.
	* testsuite/29_atomics/headers/cstdatomic/types_std_c++0x.cc:
	Likewise.
	* testsuite/29_atomics/headers/stdatomic.h/types.c: Likewise.
	* testsuite/util/testsuite_common_types.h (struct assignable,
	struct default_constructible, struct copy_constructible,
	struct explicit_value_constructible): Use a tad of simulated
	concept checking techniques to avoid spurious warnings.
	* testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error
	markers.
	* testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.

From-SVN: r137127

6 files changed, 16 insertions, 14 deletions

diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc
index a22a558..2ad480a 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic/cons/assign_neg.cc
@@ -38,8 +38,8 @@ int main()
   return 0;
 }
 
-// { dg-error "within this context" "" { target *-*-* } 309 } 
-// { dg-error "is private" "" { target *-*-* } 1750 } 
+// { dg-error "within this context" "" { target *-*-* } 310 }
+// { dg-error "is private" "" { target *-*-* } 1750 }
 // { dg-error "is private" "" { target *-*-* } 1782 } 
 // { dg-error "is private" "" { target *-*-* } 1799 }
 // { dg-error "is private" "" { target *-*-* } 1816 }
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc
index 4912518..a78177e 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic/cons/copy_neg.cc
@@ -38,9 +38,9 @@ int main()
   return 0;
 }
 
-// { dg-error "within this context" "" { target *-*-* } 332 } 
-// { dg-error "is private" "" { target *-*-* } 1749 } 
-// { dg-error "is private" "" { target *-*-* } 1781 } 
+// { dg-error "within this context" "" { target *-*-* } 349 } 
+// { dg-error "is private" "" { target *-*-* } 1749 }
+// { dg-error "is private" "" { target *-*-* } 1781 }
 // { dg-error "is private" "" { target *-*-* } 1798 }
 // { dg-error "is private" "" { target *-*-* } 1814 }
 // { dg-error "is private" "" { target *-*-* } 1831 }
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/aggregate.cc b/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/aggregate.cc
index 151d85f..e7a046f 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/aggregate.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/aggregate.cc
@@ -33,6 +33,6 @@
 int main()
 {
   // Only safe usage.
-  std::atomic_flag guard = ATOMIC_FLAG_INIT;
+  std::atomic_flag guard __attribute__((unused)) = ATOMIC_FLAG_INIT;
   return 0;
 }
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc b/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc
index b4fa3a7..591a3f2 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_flag/cons/default.cc
@@ -32,6 +32,6 @@
 int main()
 {
   // Default constructor.
-  std::atomic_flag a;
+  std::atomic_flag a __attribute__((unused));
   return 0;
 }
diff --git a/libstdc++-v3/testsuite/29_atomics/headers/cstdatomic/types_std_c++0x.cc b/libstdc++-v3/testsuite/29_atomics/headers/cstdatomic/types_std_c++0x.cc
index 31b32c1..9a3ab5e 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/cstdatomic/types_std_c++0x.cc
+++ b/libstdc++-v3/testsuite/29_atomics/headers/cstdatomic/types_std_c++0x.cc
@@ -76,5 +76,6 @@ void test01()
 
   using std::atomic_address;
 
-  &std::atomic_global_fence_compatibility;
+  const std::atomic_flag* p __attribute__((unused))
+    = &std::atomic_global_fence_compatibility;
 }
diff --git a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/types.c b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/types.c
index 8e9cfd5..88bc740 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/types.c
+++ b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/types.c
@@ -24,11 +24,11 @@
 void test01()
 {
   typedef memory_order t_01;
-  memory_order t_02 = memory_order_relaxed;
-  memory_order t_03 = memory_order_acquire;
-  memory_order t_04 = memory_order_release;
-  memory_order t_05 = memory_order_acq_rel;
-  memory_order t_06 = memory_order_seq_cst;
+  memory_order t_02 __attribute__((unused)) = memory_order_relaxed;
+  memory_order t_03 __attribute__((unused)) = memory_order_acquire;
+  memory_order t_04 __attribute__((unused)) = memory_order_release;
+  memory_order t_05 __attribute__((unused)) = memory_order_acq_rel;
+  memory_order t_06 __attribute__((unused)) = memory_order_seq_cst;
 
   typedef atomic_flag t_07;
 
@@ -76,5 +76,6 @@ void test01()
 
   typedef atomic_address t_46;
 
-  &atomic_global_fence_compatibility;
+  const atomic_flag* p __attribute__((unused))
+    = &atomic_global_fence_compatibility;
 }