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Fix tests that fail in C++2a mode 

The nested typedefs in std::reference_wrapper are no longer present in
C++2a mode, so skip the tests that check for them.

The addition of the [[nodiscard]] attribute to a few functions causes
some failures in tests that intentionally ignore the return value.
Casting the result to void suppresses the new warnings.

	* testsuite/20_util/reference_wrapper/result_type.cc: Disable for
	C++2a.
	* testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
	* testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
	* testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
	* testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
	* testsuite/ext/array_allocator/26875.cc: Likewise.
	* testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
	* testsuite/util/replacement_memory_operators.h: Likewise.
	* testsuite/util/testsuite_allocator.h: Likewise.

From-SVN: r268355
This commit is contained in:
Jonathan Wakely 2019-01-29 00:47:32 +00:00 committed by Jonathan Wakely
parent 1f48525ded
commit 2104ca71da
10 changed files with 22 additions and 7 deletions
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11
libstdc++-v3/ChangeLog
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@ -1,5 +1,16 @@
2019-01-29 Jonathan Wakely <jwakely@redhat.com>
* testsuite/20_util/reference_wrapper/result_type.cc: Disable for
C++2a.
* testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
* testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
* testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
* testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
* testsuite/ext/array_allocator/26875.cc: Likewise.
* testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
* testsuite/util/replacement_memory_operators.h: Likewise.
* testsuite/util/testsuite_allocator.h: Likewise.
* include/std/memory_resource (__pool_resource::_M_unpooled): Use
normal mode vector, even for debug mode.
* include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):

1
libstdc++-v3/testsuite/20_util/reference_wrapper/result_type.cc
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@ -1,4 +1,5 @@
// { dg-do compile { target c++11 } }
// { dg-skip-if "result_type removed for C++20" { c++2a } }
// 2010-10-06 Paolo Carlini <paolo.carlini@oracle.com>

1
libstdc++-v3/testsuite/20_util/reference_wrapper/typedefs-2.cc
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@ -1,4 +1,5 @@
// { dg-do compile { target c++11 } }
// { dg-skip-if "argument_type removed for C++20" { c++2a } }
// 2010-10-06 Paolo Carlini <paolo.carlini@oracle.com>

1
libstdc++-v3/testsuite/20_util/reference_wrapper/typedefs-3.cc
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@ -1,4 +1,5 @@
// { dg-do compile { target c++11 } }
// { dg-skip-if "argument_type removed for C++20" { c++2a } }
// Copyright (C) 2011-2019 Free Software Foundation, Inc.
//

1
libstdc++-v3/testsuite/20_util/reference_wrapper/typedefs.cc
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@ -1,4 +1,5 @@
// { dg-do compile { target c++11 } }
// { dg-skip-if "result_type removed for C++20" { c++2a } }
// Copyright (C) 2008-2019 Free Software Foundation, Inc.
//

2
libstdc++-v3/testsuite/30_threads/async/54297.cc
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@ -45,5 +45,5 @@ struct Task
int main()
{
std::async(std::launch::async, Task());
(void) std::async(std::launch::async, Task());
}

4
libstdc++-v3/testsuite/ext/array_allocator/26875.cc
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@ -33,8 +33,8 @@ int main()
try
{
Allocator1.allocate(1);
Allocator2.allocate(1);
(void) Allocator1.allocate(1);
(void) Allocator2.allocate(1);
}
catch (std::bad_alloc& ex)
{

4
libstdc++-v3/testsuite/ext/pool_allocator/allocate_chunk.cc
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@ -48,13 +48,13 @@ void test01()
using __gnu_cxx::__pool_alloc;
__pool_alloc<big> alloc_big;
alloc_big.allocate(1);
(void) alloc_big.allocate(1);
// The constant 20 comes from __pool_alloc_base::_M_refill. See
// also __pool_alloc_base::_M_allocate_chunk.
__pool_alloc<small> alloc_small;
for (unsigned int i = 0; i < 20 * sizeof(big) / sizeof(small) + 1; ++i)
alloc_small.allocate(1);
(void) alloc_small.allocate(1);
}
int main()

2
libstdc++-v3/testsuite/util/replacement_memory_operators.h
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@ -64,7 +64,7 @@ namespace __gnu_test
check_new(Alloc a = Alloc())
{
__gnu_test::counter::exceptions(false);
a.allocate(10);
(void) a.allocate(10);
const bool __b((__gnu_test::counter::count() > 0) == uses_global_new);
if (!__b)
throw std::logic_error("counter not incremented");

2
libstdc++-v3/testsuite/util/testsuite_allocator.h
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@ -245,7 +245,7 @@ namespace __gnu_test
Alloc a;
try
{
a.allocate(a.max_size() + 1);
(void) a.allocate(a.max_size() + 1);
}
catch(std::bad_alloc&)
{