diff options
| author | Abseil Team <absl-team@google.com> | 2019-05-10T19·38-0700 |
|---|---|---|
| committer | Bara Kopi <bara@kopi.com> | 2019-05-10T20·08-0400 |
| commit | 0cbdc774b97f7e80ab60dbe2ed4eaca3b2e33fc8 (patch) | |
| tree | 0d5be86e52fab1aa1901898b9ea7fe6f4b79e41e /absl/container/internal/inlined_vector.h | |
| parent | 27c2f6e2f3b5929fbd322b0f0ca392eb02efd9f8 (diff) | |
Export of internal Abseil changes.
-- ab1a58c85a462884413ec0022dc1fff19ccb8602 by Abseil Team <absl-team@google.com>: Clarified the documentation in str_format.h to say that use of absl::FormatSpec is ok for wrapper functions. Added tests that express this. PiperOrigin-RevId: 247657991 -- fef9481e58d579f1514babcb960ca60a51883fd8 by CJ Johnson <johnsoncj@google.com>: Adds exception safety tests for InlinedVector::InlinedVector() and InlinedVector::InlinedVector(const allocator_type&). PiperOrigin-RevId: 247617048 -- ef3217e1cd1e9a6ff5f2025e061b8ce3735af78f by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 247614063 -- ed4c3345c4a04d8ec5c9e627058f17fce55925b1 by CJ Johnson <johnsoncj@google.com>: Update InlinedVector::clear() Introduces inlined_vector_exception_safety_test with the first test (clear), adds new benchmarks (for clear), and updates the implementation of clear. PiperOrigin-RevId: 247496049 -- 144a3a77c93bc8b2226da6f4b56166ee3d9868de by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 247482532 -- 286bbb89e154d5424955b644edad5fe04be487f8 by Derek Mauro <dmauro@google.com>: Add scripts to run ASAN and TSAN on CI. PiperOrigin-RevId: 247479658 GitOrigin-RevId: ab1a58c85a462884413ec0022dc1fff19ccb8602 Change-Id: Ief4c5a62587d0c59d405735df469d498aa6bf101
Diffstat (limited to 'absl/container/internal/inlined_vector.h')
| -rw-r--r-- | absl/container/internal/inlined_vector.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/absl/container/internal/inlined_vector.h b/absl/container/internal/inlined_vector.h index 6a5a75be1f20..4589ce0837a4 100644 --- a/absl/container/internal/inlined_vector.h +++ b/absl/container/internal/inlined_vector.h @@ -16,6 +16,7 @@ #define ABSL_CONTAINER_INTERNAL_INLINED_VECTOR_INTERNAL_H_ #include <cstddef> +#include <cstring> #include <iterator> #include <memory> #include <utility> @@ -31,6 +32,33 @@ using IsAtLeastForwardIterator = std::is_convertible< typename std::iterator_traits<Iterator>::iterator_category, std::forward_iterator_tag>; +template <typename AllocatorType, typename ValueType, typename SizeType> +void DestroyElements(AllocatorType alloc, ValueType* destroy_first, + SizeType destroy_size) { + using AllocatorTraits = std::allocator_traits<AllocatorType>; + + // Destroys `destroy_size` elements from `destroy_first`. + // + // Destroys the range + // [`destroy_first`, `destroy_first + destroy_size`). + // + // NOTE: We assume destructors do not throw and thus make no attempt to roll + // back. + for (SizeType i = 0; i < destroy_size; ++i) { + AllocatorTraits::destroy(alloc, destroy_first + i); + } + +#ifndef NDEBUG + // Overwrite unused memory with `0xab` so we can catch uninitialized usage. + // + // Cast to `void*` to tell the compiler that we don't care that we might be + // scribbling on a vtable pointer. + void* memory = reinterpret_cast<void*>(destroy_first); + size_t memory_size = sizeof(ValueType) * destroy_size; + std::memset(memory, 0xab, memory_size); +#endif // NDEBUG +} + template <typename T, size_t N, typename A> class Storage { public: |