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Fix after P0600.

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gcc/testsuite/ChangeLog
2019-02-20  Ulrich Drepper  <drepper@redhat.com>

	Fix after P0600.
	* g++.dg/init/new39.C: Don't just ignore result of new.

libstdc++/ChangeLog
2019-02-20  Ulrich Drepper  <drepper@redhat.com>

	Implement C++20 P0600r1.
	* include/backward/hash_map: Add nodiscard attribute to empty.
	* include/backward/hash_set: Likewise.
	* backward/hashtable.h: Likewise.
	* include/bits/basic_string.h: Likewise.
	* include/bits/forward_list.h: Likewise.
	* include/bits/hashtable.h: Likewise.
	* include/bits/regex.h: Likewise.
	* include/bits/stl_deque.h: Likewise.
	* include/bits/stl_list.h: Likewise.
	* include/bits/stl_map.h: Likewise.
	* include/bits/stl_multimap.h: Likewise.
	* include/bits/stl_multiset.h: Likewise.
	* include/bits/stl_queue.h: Likewise.
	* include/bits/stl_set.h: Likewise.
	* include/bits/stl_stack.h: Likewise.
	* include/bits/stl_tree.h: Likewise.
	* include/bits/stl_vector.h: Likewise.
	* include/bits/unordered_map.h: Likewise.
	* include/bits/unordered_set.h: Likewise.
	* include/debug/array: Likewise.
	* include/experimental/any: Likewise.
	* include/experimental/bits/fs_path.h: Likewise.
	* include/experimental/internet: Likewise.
	* include/experimental/string_view: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp:
	Likewise.
	*
include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
	Likewise.
	* include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
	Likewise.
	* include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
	Likewise.
	* include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
	Likewise.
	* include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
	* include/ext/pb_ds/trie_policy.hpp: Likewise.
	* include/ext/rope: Likewise.
	* include/ext/slist: Likewise.
	* include/ext/vstring.h: Likewise.
	* include/profile/array: Likewise.
	* include/std/array: Likewise.
	* include/tr1/array: Likewise.
	* include/tr1/hashtable.h: Likewise.
	* include/tr1/regex: Likewise.
	* include/tr2/dynamic_bitset: Likewise.
	* include/bits/alloc_traits.h: Add nodiscard attribute to
	allocate.
	* include/experimental/memory_resource: Likewise.
	* include/ext/alloc_traits.h: Likewise.
	* include/ext/array_allocator.h: Likewise.
	* include/ext/bitmap_allocator.h: Likewise.
	* include/ext/debug_allocator.h: Likewise.
	* include/ext/extptr_allocator.h: Likewise.
	* include/ext/mt_allocator.h: Likewise.
	* include/ext/new_allocator.h: Likewise.
	* include/ext/pool_allocator.h: Likewise.
	* include/ext/throw_allocator.h: Likewise.
	* include/std/scoped_allocator: Likewise.
	* libsupc++/eh_alloc.cc: Likewise.
	* include/std/future: Add nodiscard attribute to async.
	* libsupc++/new: Add nodiscard attribute to new.

From-SVN: r268111
This commit is contained in:
Ulrich Drepper 2019-01-21 11:47:30 +00:00 • committed by Ulrich Drepper
parent 91f1f6cd66
commit d715f55431
70 changed files with 193 additions and 90 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2019-01-20 Ulrich Drepper <drepper@redhat.com>
Fix after C++ P0600 implementation.
* g++.dg/init/new39.C: Don't just ignore result of new.
2019-01-20 Iain Buclaw <ibuclaw@gdcproject.org>
* gdc.dg/runnable.d: Add more tests for comparing complex types.

2
gcc/testsuite/g++.dg/init/new39.C
View file

@ -57,7 +57,7 @@ int
main ()
{
try {
::operator new(size_t(-1));
(void) ::operator new(size_t(-1));
abort ();
} catch (std::bad_alloc &) {
}

89
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,92 @@
2019-01-20 Ulrich Drepper <drepper@redhat.com>
Implement C++20 P0600r1.
* include/backward/hash_map: Add nodiscard attribute to empty.
* include/backward/hash_set: Likewise.
* backward/hashtable.h: Likewise.
* include/bits/basic_string.h: Likewise.
* include/bits/forward_list.h: Likewise.
* include/bits/hashtable.h: Likewise.
* include/bits/regex.h: Likewise.
* include/bits/stl_deque.h: Likewise.
* include/bits/stl_list.h: Likewise.
* include/bits/stl_map.h: Likewise.
* include/bits/stl_multimap.h: Likewise.
* include/bits/stl_multiset.h: Likewise.
* include/bits/stl_queue.h: Likewise.
* include/bits/stl_set.h: Likewise.
* include/bits/stl_stack.h: Likewise.
* include/bits/stl_tree.h: Likewise.
* include/bits/stl_vector.h: Likewise.
* include/bits/unordered_map.h: Likewise.
* include/bits/unordered_set.h: Likewise.
* include/debug/array: Likewise.
* include/experimental/any: Likewise.
* include/experimental/bits/fs_path.h: Likewise.
* include/experimental/internet: Likewise.
* include/experimental/string_view: Likewise.
* include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
Likewise.
* include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
Likewise.
* include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
Likewise.
* include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
info_fn_imps.hpp: Likewise.
* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
left_child_next_sibling_heap_.hpp: Likewise.
* include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
Likewise.
* include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
Likewise.
* include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
Likewise.
* include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
Likewise.
* include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
Likewise.
* include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
* include/ext/pb_ds/trie_policy.hpp: Likewise.
* include/ext/rope: Likewise.
* include/ext/slist: Likewise.
* include/ext/vstring.h: Likewise.
* include/profile/array: Likewise.
* include/std/array: Likewise.
* include/tr1/array: Likewise.
* include/tr1/hashtable.h: Likewise.
* include/tr1/regex: Likewise.
* include/tr2/dynamic_bitset: Likewise.
* include/bits/alloc_traits.h: Add nodiscard attribute to
allocate.
* include/experimental/memory_resource: Likewise.
* include/ext/alloc_traits.h: Likewise.
* include/ext/array_allocator.h: Likewise.
* include/ext/bitmap_allocator.h: Likewise.
* include/ext/debug_allocator.h: Likewise.
* include/ext/extptr_allocator.h: Likewise.
* include/ext/mt_allocator.h: Likewise.
* include/ext/new_allocator.h: Likewise.
* include/ext/pool_allocator.h: Likewise.
* include/ext/throw_allocator.h: Likewise.
* include/std/scoped_allocator: Likewise.
* libsupc++/eh_alloc.cc: Likewise.
* include/std/future: Add nodiscard attribute to async.
* libsupc++/new: Add nodiscard attribute to new.
2019-01-18 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/87514

4
libstdc++-v3/include/backward/hash_map
View file

@ -166,7 +166,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return _M_ht.max_size(); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return _M_ht.empty(); }
@ -385,7 +385,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return _M_ht.max_size(); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return _M_ht.empty(); }

4
libstdc++-v3/include/backward/hash_set
View file

@ -168,7 +168,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return _M_ht.max_size(); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return _M_ht.empty(); }
@ -369,7 +369,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return _M_ht.max_size(); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return _M_ht.empty(); }

2
libstdc++-v3/include/backward/hashtable.h
View file

@ -379,7 +379,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return size_type(-1); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return size() == 0; }

8
libstdc++-v3/include/bits/alloc_traits.h
View file

@ -301,7 +301,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
*
* Calls @c a.allocate(n)
*/
static pointer
_GLIBCXX_NODISCARD static pointer
allocate(_Alloc& __a, size_type __n)
{ return __a.allocate(__n); }
@ -316,7 +316,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* Returns <tt> a.allocate(n, hint) </tt> if that expression is
* well-formed, otherwise returns @c a.allocate(n)
*/
static pointer
_GLIBCXX_NODISCARD static pointer
allocate(_Alloc& __a, size_type __n, const_void_pointer __hint)
{ return _S_allocate(__a, __n, __hint, 0); }
@ -439,7 +439,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
*
* Calls @c a.allocate(n)
*/
static pointer
_GLIBCXX_NODISCARD static pointer
allocate(allocator_type& __a, size_type __n)
{ return __a.allocate(__n); }
@ -453,7 +453,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
*
* Returns <tt> a.allocate(n, hint) </tt>
*/
static pointer
_GLIBCXX_NODISCARD static pointer
allocate(allocator_type& __a, size_type __n, const_void_pointer __hint)
{ return __a.allocate(__n, __hint); }

4
libstdc++-v3/include/bits/basic_string.h
View file

@ -1027,7 +1027,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
* Returns true if the %string is empty. Equivalent to
* <code>*this == ""</code>.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return this->size() == 0; }
@ -4007,7 +4007,7 @@ _GLIBCXX_END_NAMESPACE_CXX11
* Returns true if the %string is empty. Equivalent to
* <code>*this == ""</code>.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return this->size() == 0; }

2
libstdc++-v3/include/bits/forward_list.h
View file

@ -774,7 +774,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
* Returns true if the %forward_list is empty. (Thus begin() would
* equal end().)
*/
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return this->_M_impl._M_head._M_next == nullptr; }

2
libstdc++-v3/include/bits/hashtable.h
View file

@ -533,7 +533,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
size() const noexcept
{ return _M_element_count; }
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return size() == 0; }

2
libstdc++-v3/include/bits/regex.h
View file

@ -1705,7 +1705,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
* @retval true The %match_results object is empty.
* @retval false The %match_results object is not empty.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return size() == 0; }

2
libstdc++-v3/include/bits/stl_deque.h
View file

@ -1377,7 +1377,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
* Returns true if the %deque is empty. (Thus begin() would
* equal end().)
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_finish == this->_M_impl._M_start; }

2
libstdc++-v3/include/bits/stl_list.h
View file

@ -1047,7 +1047,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
* Returns true if the %list is empty. (Thus begin() would equal
* end().)
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_node._M_next == &this->_M_impl._M_node; }

2
libstdc++-v3/include/bits/stl_map.h
View file

@ -459,7 +459,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
/** Returns true if the %map is empty. (Thus begin() would equal
* end().)
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return _M_t.empty(); }

2
libstdc++-v3/include/bits/stl_multimap.h
View file

@ -452,7 +452,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// capacity
/** Returns true if the %multimap is empty. */
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return _M_t.empty(); }

2
libstdc++-v3/include/bits/stl_multiset.h
View file

@ -406,7 +406,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
#endif
/// Returns true if the %set is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return _M_t.empty(); }

4
libstdc++-v3/include/bits/stl_queue.h
View file

@ -185,7 +185,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* Returns true if the %queue is empty.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return c.empty(); }
@ -563,7 +563,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* Returns true if the %queue is empty.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return c.empty(); }

2
libstdc++-v3/include/bits/stl_set.h
View file

@ -410,7 +410,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
#endif
/// Returns true if the %set is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return _M_t.empty(); }

2
libstdc++-v3/include/bits/stl_stack.h
View file

@ -181,7 +181,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* Returns true if the %stack is empty.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return c.empty(); }

2
libstdc++-v3/include/bits/stl_tree.h
View file

@ -1027,7 +1027,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
rend() const _GLIBCXX_NOEXCEPT
{ return const_reverse_iterator(begin()); }
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return _M_impl._M_node_count == 0; }

2
libstdc++-v3/include/bits/stl_vector.h
View file

@ -964,7 +964,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
* Returns true if the %vector is empty. (Thus begin() would
* equal end().)
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return begin() == end(); }

4
libstdc++-v3/include/bits/unordered_map.h
View file

@ -300,7 +300,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// size and capacity:
/// Returns true if the %unordered_map is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return _M_h.empty(); }
@ -1441,7 +1441,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// size and capacity:
/// Returns true if the %unordered_multimap is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return _M_h.empty(); }

4
libstdc++-v3/include/bits/unordered_set.h
View file

@ -294,7 +294,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// size and capacity:
/// Returns true if the %unordered_set is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return _M_h.empty(); }
@ -1102,7 +1102,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// size and capacity:
/// Returns true if the %unordered_multiset is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return _M_h.empty(); }

4
libstdc++-v3/include/debug/array
View file

@ -71,7 +71,7 @@ namespace __debug
template<std::size_t _Size>
struct _Array_check_nonempty
{
bool empty() { return _Size == 0; }
_GLIBCXX_NODISCARD bool empty() { return _Size == 0; }
_Array_check_nonempty()
{ __glibcxx_check_nonempty(); }
@ -145,7 +145,7 @@ namespace __debug
constexpr size_type
max_size() const noexcept { return _Nm; }
constexpr bool
_GLIBCXX_NODISCARD constexpr bool
empty() const noexcept { return size() == 0; }
// Element access.

2
libstdc++-v3/include/experimental/any
View file

@ -266,7 +266,7 @@ inline namespace fundamentals_v1
// observers
/// Reports whether there is a contained object or not.
bool empty() const noexcept { return _M_manager == nullptr; }
_GLIBCXX_NODISCARD bool empty() const noexcept { return _M_manager == nullptr; }
#if __cpp_rtti
/// The @c typeid of the contained object, or @c typeid(void) if empty.

2
libstdc++-v3/include/experimental/bits/fs_path.h
View file

@ -365,7 +365,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
// query
bool empty() const noexcept { return _M_pathname.empty(); }
_GLIBCXX_NODISCARD bool empty() const noexcept { return _M_pathname.empty(); }
bool has_root_name() const;
bool has_root_directory() const;
bool has_root_path() const;

6
libstdc++-v3/include/experimental/internet
View file

@ -1049,7 +1049,7 @@ namespace ip
iterator begin() const noexcept { return _M_begin; }
iterator end() const noexcept { return _M_end; }
bool empty() const noexcept { return _M_begin == _M_end; }
_GLIBCXX_NODISCARD bool empty() const noexcept { return _M_begin == _M_end; }
size_t
size() const noexcept { return _M_end->to_uint() - _M_begin->to_uint(); }
@ -1093,7 +1093,7 @@ namespace ip
iterator begin() const noexcept { return _M_begin; }
iterator end() const noexcept { return _M_end; }
bool empty() const noexcept { return _M_begin == _M_end; }
_GLIBCXX_NODISCARD bool empty() const noexcept { return _M_begin == _M_end; }
iterator
find(const address_v6& __addr) const noexcept
@ -1721,7 +1721,7 @@ namespace ip
// size:
size_type size() const noexcept { return _M_size; }
size_type max_size() const noexcept { return _M_results.max_size(); }
bool empty() const noexcept { return _M_results.empty(); }
_GLIBCXX_NODISCARD bool empty() const noexcept { return _M_results.empty(); }
// element access:
const_iterator begin() const { return _M_results.begin(); }

4
libstdc++-v3/include/experimental/memory_resource
View file

@ -88,7 +88,7 @@ namespace pmr {
memory_resource& operator=(const memory_resource&) = default;
void*
_GLIBCXX_NODISCARD void*
allocate(size_t __bytes, size_t __alignment = _S_max_align)
{ return do_allocate(__bytes, __alignment); }
@ -145,7 +145,7 @@ namespace pmr {
polymorphic_allocator&
operator=(const polymorphic_allocator& __rhs) = default;
_Tp* allocate(size_t __n)
_GLIBCXX_NODISCARD _Tp* allocate(size_t __n)
{ return static_cast<_Tp*>(_M_resource->allocate(__n * sizeof(_Tp),
alignof(_Tp))); }

2
libstdc++-v3/include/experimental/string_view
View file

@ -169,7 +169,7 @@ inline namespace fundamentals_v1
/ sizeof(value_type) / 4;
}
constexpr bool
_GLIBCXX_NODISCARD constexpr bool
empty() const noexcept
{ return this->_M_len == 0; }

2
libstdc++-v3/include/ext/alloc_traits.h
View file

@ -128,7 +128,7 @@ template<typename _Alloc, typename = typename _Alloc::value_type>
typedef typename _Alloc::size_type size_type;
typedef typename _Alloc::difference_type difference_type;
static pointer
_GLIBCXX_NODISCARD static pointer
allocate(_Alloc& __a, size_type __n)
{ return __a.allocate(__n); }

2
libstdc++-v3/include/ext/array_allocator.h
View file

@ -151,7 +151,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
~array_allocator() _GLIBCXX_USE_NOEXCEPT { }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* = 0)
{
if (_M_array == 0 || _M_used + __n > _M_array->size())

6
libstdc++-v3/include/ext/bitmap_allocator.h
View file

@ -90,7 +90,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_space_left() const throw()
{ return _M_end_of_storage - _M_finish; }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n)
{ return static_cast<pointer>(::operator new(__n * sizeof(_Tp))); }
@ -1009,7 +1009,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
~bitmap_allocator() _GLIBCXX_USE_NOEXCEPT
{ }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n)
{
if (__n > this->max_size())
@ -1033,7 +1033,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
}
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, typename bitmap_allocator<void>::const_pointer)
{ return allocate(__n); }

4
libstdc++-v3/include/ext/debug_allocator.h
View file

@ -118,7 +118,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
debug_allocator(const _Alloc& __a)
: _M_allocator(__a), _M_extra(_S_extra()) { }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n)
{
pointer __res = _M_allocator.allocate(__n + _M_extra);
@ -127,7 +127,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return __res + _M_extra;
}
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* __hint)
{
pointer __res = _M_allocator.allocate(__n + _M_extra, __hint);

2
libstdc++-v3/include/ext/extptr_allocator.h
View file

@ -92,7 +92,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const_pointer address(const_reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
pointer allocate(size_type __n, void* __hint = 0)
_GLIBCXX_NODISCARD pointer allocate(size_type __n, void* __hint = 0)
{ return _M_real_alloc.allocate(__n,__hint); }
void deallocate(pointer __p, size_type __n)

4
libstdc++-v3/include/ext/mt_allocator.h
View file

@ -665,7 +665,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
~__mt_alloc() _GLIBCXX_USE_NOEXCEPT { }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* = 0);
void
@ -684,7 +684,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
};
template<typename _Tp, typename _Poolp>
typename __mt_alloc<_Tp, _Poolp>::pointer
_GLIBCXX_NODISCARD typename __mt_alloc<_Tp, _Poolp>::pointer
__mt_alloc<_Tp, _Poolp>::
allocate(size_type __n, const void*)
{

2
libstdc++-v3/include/ext/new_allocator.h
View file

@ -98,7 +98,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// NB: __n is permitted to be 0. The C++ standard says nothing
// about what the return value is when __n == 0.
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* = static_cast<const void*>(0))
{
if (__n > this->max_size())

1
libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp
View file

@ -39,6 +39,7 @@
*/
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp
View file

@ -144,7 +144,7 @@ namespace __gnu_pbds
~binary_heap();
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline size_type

1
libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp
View file

@ -39,6 +39,7 @@
*/
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
View file

@ -271,7 +271,7 @@ namespace __gnu_pbds
max_size() const;
/// True if size() == 0.
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
/// Return current hash_fn.

1
libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp
View file

@ -52,6 +52,7 @@ max_size() const
{ return m_entry_allocator.max_size(); }
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

1
libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp
View file

@ -46,6 +46,7 @@ size() const
{ return m_num_used_e; }
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp
View file

@ -279,7 +279,7 @@ namespace __gnu_pbds
max_size() const;
/// True if size() == 0.
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
/// Return current hash_fn.

1
libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp
View file

@ -52,6 +52,7 @@ max_size() const
{ return s_entry_allocator.max_size(); }
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

1
libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp
View file

@ -39,6 +39,7 @@
*/
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
View file

@ -144,7 +144,7 @@ namespace __gnu_pbds
~left_child_next_sibling_heap();
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline size_type

1
libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp
View file

@ -51,6 +51,7 @@ max_size() const
{ return s_entry_allocator.max_size(); }
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp
View file

@ -198,7 +198,7 @@ namespace __gnu_pbds
inline size_type
max_size() const;
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline mapped_reference

1
libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp
View file

@ -54,6 +54,7 @@ max_size() const
{ return s_value_alloc.max_size(); }
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

2
libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp
View file

@ -239,7 +239,7 @@ namespace __gnu_pbds
inline size_type
max_size() const;
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline size_type

1
libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp
View file

@ -39,6 +39,7 @@
*/
PB_DS_CLASS_T_DEC
_GLIBCXX_NODISCARD
inline bool
PB_DS_CLASS_C_DEC::
empty() const

4
libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp
View file

@ -223,7 +223,7 @@ namespace __gnu_pbds
}
}
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const
{ return m_bag.empty(); }
};
@ -279,7 +279,7 @@ namespace __gnu_pbds
~PB_DS_PAT_TRIE_NAME();
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline size_type

4
libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp
View file

@ -87,7 +87,7 @@ namespace __gnu_pbds
inline void
pop();
inline bool
_GLIBCXX_NODISCARD inline bool
empty() const;
inline size_type
@ -178,7 +178,7 @@ namespace __gnu_pbds
}
template<typename _Node, typename _Alloc>
inline bool
_GLIBCXX_NODISCARD inline bool
rc<_Node, _Alloc>::
empty() const
{

2
libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp
View file

@ -80,7 +80,7 @@ namespace __gnu_pbds
void
trace_node(node_const_iterator, size_type) const;
virtual bool
_GLIBCXX_NODISCARD virtual bool
empty() const = 0;
virtual node_const_iterator

2
libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
View file

@ -315,7 +315,7 @@ namespace __gnu_pbds
typedef typename __rebind_ma::reference metadata_reference;
/// Returns true if the container is empty.
virtual bool
_GLIBCXX_NODISCARD virtual bool
empty() const = 0;
/// Returns the iterator associated with the trie's first element.

4
libstdc++-v3/include/ext/pool_allocator.h
View file

@ -188,7 +188,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
destroy(pointer __p) { __p->~_Tp(); }
#endif
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* = 0);
void
@ -210,7 +210,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__pool_alloc<_Tp>::_S_force_new;
template<typename _Tp>
_Tp*
_GLIBCXX_NODISCARD _Tp*
__pool_alloc<_Tp>::allocate(size_type __n, const void*)
{
pointer __ret = 0;

2
libstdc++-v3/include/ext/rope
View file

@ -1797,7 +1797,7 @@ protected:
static int _S_compare(const _RopeRep* __x, const _RopeRep* __y);
public:
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return 0 == this->_M_tree_ptr; }

2
libstdc++-v3/include/ext/slist
View file

@ -458,7 +458,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
max_size() const
{ return size_type(-1); }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return this->_M_head._M_next == 0; }

2
libstdc++-v3/include/ext/throw_allocator.h
View file

@ -829,7 +829,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
address(const_reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
pointer
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, std::allocator<void>::const_pointer hint = 0)
{
if (__n > this->max_size())

2
libstdc++-v3/include/ext/vstring.h
View file

@ -518,7 +518,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* Returns true if the %string is empty. Equivalent to
* <code>*this == ""</code>.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const _GLIBCXX_NOEXCEPT
{ return this->size() == 0; }

2
libstdc++-v3/include/profile/array
View file

@ -124,7 +124,7 @@ namespace __profile
constexpr size_type
max_size() const noexcept { return _Nm; }
constexpr bool
_GLIBCXX_NODISCARD constexpr bool
empty() const noexcept { return size() == 0; }
// Element access.

2
libstdc++-v3/include/std/array
View file

@ -177,7 +177,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
constexpr size_type
max_size() const noexcept { return _Nm; }
constexpr bool
_GLIBCXX_NODISCARD constexpr bool
empty() const noexcept { return size() == 0; }
// Element access.

4
libstdc++-v3/include/std/future
View file

@ -1703,7 +1703,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// async
template<typename _Fn, typename... _Args>
future<__async_result_of<_Fn, _Args...>>
_GLIBCXX_NODISCARD future<__async_result_of<_Fn, _Args...>>
async(launch __policy, _Fn&& __fn, _Args&&... __args)
{
std::shared_ptr<__future_base::_State_base> __state;
@ -1736,7 +1736,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// async, potential overload
template<typename _Fn, typename... _Args>
inline future<__async_result_of<_Fn, _Args...>>
_GLIBCXX_NODISCARD inline future<__async_result_of<_Fn, _Args...>>
async(_Fn&& __fn, _Args&&... __args)
{
return std::async(launch::async|launch::deferred,

4
libstdc++-v3/include/std/scoped_allocator
View file

@ -343,10 +343,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const outer_allocator_type& outer_allocator() const noexcept
{ return static_cast<const _OuterAlloc&>(*this); }
pointer allocate(size_type __n)
_GLIBCXX_NODISCARD pointer allocate(size_type __n)
{ return __traits::allocate(outer_allocator(), __n); }
pointer allocate(size_type __n, const_void_pointer __hint)
_GLIBCXX_NODISCARD pointer allocate(size_type __n, const_void_pointer __hint)
{ return __traits::allocate(outer_allocator(), __n, __hint); }
void deallocate(pointer __p, size_type __n)

2
libstdc++-v3/include/tr1/array
View file

@ -119,7 +119,7 @@ namespace tr1
size_type
max_size() const { return _Nm; }
bool
_GLIBCXX_NODISCARD bool
empty() const { return size() == 0; }
// Element access.

2
libstdc++-v3/include/tr1/hashtable.h
View file

@ -244,7 +244,7 @@ namespace tr1
size() const
{ return _M_element_count; }
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return size() == 0; }

2
libstdc++-v3/include/tr1/regex
View file

@ -1870,7 +1870,7 @@ namespace regex_constants
* @retval true The %match_results object is empty.
* @retval false The %match_results object is not empty.
*/
bool
_GLIBCXX_NODISCARD bool
empty() const
{ return size() == 0; }

2
libstdc++-v3/include/tr2/dynamic_bitset
View file

@ -1014,7 +1014,7 @@ namespace tr2
{ return this->_M_size(); }
/// Returns true if the dynamic_bitset is empty.
bool
_GLIBCXX_NODISCARD bool
empty() const noexcept
{ return (this->_M_Nb == 0); }

2
libstdc++-v3/libsupc++/eh_alloc.cc
View file

@ -86,7 +86,7 @@ namespace
public:
pool();
void *allocate (std::size_t);
_GLIBCXX_NODISCARD void *allocate (std::size_t);
void free (void *);
bool in_pool (void *);

20
libstdc++-v3/libsupc++/new
View file

@ -122,9 +122,9 @@ namespace std
* Placement new and delete signatures (take a memory address argument,
* does nothing) may not be replaced by a user's program.
*/
void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
_GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
__attribute__((__externally_visible__));
void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
_GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
__attribute__((__externally_visible__));
void operator delete(void*) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__));
@ -136,26 +136,26 @@ void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__));
#endif
void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
_GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__, __malloc__));
void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
_GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__, __malloc__));
void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__));
void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
__attribute__((__externally_visible__));
#if __cpp_aligned_new
void* operator new(std::size_t, std::align_val_t)
_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)
__attribute__((__externally_visible__));
void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
_GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__));
void operator delete(void*, std::align_val_t)
_GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
void operator delete(void*, std::align_val_t, const std::nothrow_t&)
_GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
void* operator new[](std::size_t, std::align_val_t)
_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)
__attribute__((__externally_visible__));
void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&)
_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&)
_GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__));
void operator delete[](void*, std::align_val_t)
_GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
@ -170,9 +170,9 @@ void operator delete[](void*, std::size_t, std::align_val_t)
#endif // __cpp_aligned_new
// Default placement versions of operator new.
inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
_GLIBCXX_NODISCARD inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
{ return __p; }
inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
_GLIBCXX_NODISCARD inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
{ return __p; }
// Default placement versions of operator delete.