diff options
Diffstat (limited to 'absl/memory')
-rw-r--r-- | absl/memory/memory.h | 56 |
1 files changed, 30 insertions, 26 deletions
diff --git a/absl/memory/memory.h b/absl/memory/memory.h index c7caf8b94dc9..a80aab0af641 100644 --- a/absl/memory/memory.h +++ b/absl/memory/memory.h @@ -641,55 +641,59 @@ struct default_allocator_is_nothrow : std::false_type {}; #endif namespace memory_internal { -#ifdef ABSL_HAVE_EXCEPTIONS -template <typename Allocator, typename StorageElement, typename... Args> -void ConstructStorage(Allocator* alloc, StorageElement* first, - StorageElement* last, const Args&... args) { - for (StorageElement* cur = first; cur != last; ++cur) { +#ifdef ABSL_HAVE_EXCEPTIONS // ConstructRange +template <typename Allocator, typename Iterator, typename... Args> +void ConstructRange(Allocator& alloc, Iterator first, Iterator last, + const Args&... args) { + for (Iterator cur = first; cur != last; ++cur) { try { - std::allocator_traits<Allocator>::construct(*alloc, cur, args...); + std::allocator_traits<Allocator>::construct(alloc, cur, args...); } catch (...) { while (cur != first) { --cur; - std::allocator_traits<Allocator>::destroy(*alloc, cur); + std::allocator_traits<Allocator>::destroy(alloc, cur); } throw; } } } -template <typename Allocator, typename StorageElement, typename Iterator> -void CopyToStorageFromRange(Allocator* alloc, StorageElement* destination, - Iterator first, Iterator last) { - for (StorageElement* cur = destination; first != last; +#else // ABSL_HAVE_EXCEPTIONS // ConstructRange +template <typename Allocator, typename Iterator, typename... Args> +void ConstructRange(Allocator& alloc, Iterator first, Iterator last, + const Args&... args) { + for (; first != last; ++first) { + std::allocator_traits<Allocator>::construct(alloc, first, args...); + } +} +#endif // ABSL_HAVE_EXCEPTIONS // ConstructRange + +#ifdef ABSL_HAVE_EXCEPTIONS // CopyRange +template <typename Allocator, typename Iterator, typename InputIterator> +void CopyRange(Allocator& alloc, Iterator destination, InputIterator first, + InputIterator last) { + for (Iterator cur = destination; first != last; static_cast<void>(++cur), static_cast<void>(++first)) { try { - std::allocator_traits<Allocator>::construct(*alloc, cur, *first); + std::allocator_traits<Allocator>::construct(alloc, cur, *first); } catch (...) { while (cur != destination) { --cur; - std::allocator_traits<Allocator>::destroy(*alloc, cur); + std::allocator_traits<Allocator>::destroy(alloc, cur); } throw; } } } -#else // ABSL_HAVE_EXCEPTIONS -template <typename Allocator, typename StorageElement, typename... Args> -void ConstructStorage(Allocator* alloc, StorageElement* first, - StorageElement* last, const Args&... args) { - for (; first != last; ++first) { - std::allocator_traits<Allocator>::construct(*alloc, first, args...); - } -} -template <typename Allocator, typename StorageElement, typename Iterator> -void CopyToStorageFromRange(Allocator* alloc, StorageElement* destination, - Iterator first, Iterator last) { +#else // ABSL_HAVE_EXCEPTIONS // CopyRange +template <typename Allocator, typename Iterator, typename InputIterator> +void CopyRange(Allocator& alloc, Iterator destination, InputIterator first, + InputIterator last) { for (; first != last; static_cast<void>(++destination), static_cast<void>(++first)) { - std::allocator_traits<Allocator>::construct(*alloc, destination, *first); + std::allocator_traits<Allocator>::construct(alloc, destination, *first); } } -#endif // ABSL_HAVE_EXCEPTIONS +#endif // ABSL_HAVE_EXCEPTIONS // CopyRange } // namespace memory_internal } // namespace absl |