From 72e09a54d993b192db32be14c65adf7e9bd08c31 Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Tue, 25 Jun 2019 12:32:44 -0700
Subject: Export of internal Abseil changes. --
 2ee5dbb79b56539b580c3a36eec5a025d08b7022 by Eric Fiselier
 <ericwf@google.com>:

Unconditionally apply no-sanitize attributes.

We currently fail to apply the attributes in open-source
land because the build system doesn't define ADDRESS_SANITIZER
like we expect.

The attributes should have no effect when the sanitizers are
disabled.

PiperOrigin-RevId: 255024122

--
5a123175146de14d04013862aa378f28f8eff73c by CJ Johnson <johnsoncj@google.com>:

Updates the InputIterator-accepting member functions of InlinedVector to be cleaner/easier to read

PiperOrigin-RevId: 254994794

--
a4bdb61407a76317810785a34e49f996699ab4a4 by Abseil Team <absl-team@google.com>:

Added back c_move_backward which was previously deleted by mistake.

PiperOrigin-RevId: 254990809

--
bc427ca5f7fb88a70ba3a676bb9c7ff829c65ae9 by CJ Johnson <johnsoncj@google.com>:

Removes DestroyAndDeallocate() function from the internal details of InlinedVector because it ended up not being particularly useful

PiperOrigin-RevId: 254981201
GitOrigin-RevId: 2ee5dbb79b56539b580c3a36eec5a025d08b7022
Change-Id: I825c6c0a2fcf13ed6e60d71224037a57d7068d55
---
 absl/algorithm/container.h       | 10 ++++++++++
 absl/algorithm/container_test.cc | 13 +++++++++++++
 2 files changed, 23 insertions(+)

(limited to 'absl/algorithm')

diff --git a/absl/algorithm/container.h b/absl/algorithm/container.h
index 752e47b23939..c84de461ac28 100644
--- a/absl/algorithm/container.h
+++ b/absl/algorithm/container.h
@@ -510,6 +510,16 @@ OutputIterator c_move(C&& src, OutputIterator dest) {
                    container_algorithm_internal::c_end(src), dest);
 }
 
+// c_move_backward()
+//
+// Container-based version of the <algorithm> `std::move_backward()` function to
+// move a container's elements into an iterator in reverse order.
+template <typename C, typename BidirectionalIterator>
+BidirectionalIterator c_move_backward(C&& src, BidirectionalIterator dest) {
+  return std::move_backward(container_algorithm_internal::c_begin(src),
+                            container_algorithm_internal::c_end(src), dest);
+}
+
 // c_swap_ranges()
 //
 // Container-based version of the <algorithm> `std::swap_ranges()` function to
diff --git a/absl/algorithm/container_test.cc b/absl/algorithm/container_test.cc
index 04282b8947a0..86bf9d3ea327 100644
--- a/absl/algorithm/container_test.cc
+++ b/absl/algorithm/container_test.cc
@@ -636,6 +636,19 @@ TEST(MutatingTest, Move) {
                                 Pointee(5)));
 }
 
+TEST(MutatingTest, MoveBackward) {
+  std::vector<std::unique_ptr<int>> actual;
+  actual.emplace_back(absl::make_unique<int>(1));
+  actual.emplace_back(absl::make_unique<int>(2));
+  actual.emplace_back(absl::make_unique<int>(3));
+  actual.emplace_back(absl::make_unique<int>(4));
+  actual.emplace_back(absl::make_unique<int>(5));
+  auto subrange = absl::MakeSpan(actual.data(), 3);
+  absl::c_move_backward(subrange, actual.end());
+  EXPECT_THAT(actual, ElementsAre(IsNull(), IsNull(), Pointee(1), Pointee(2),
+                                  Pointee(3)));
+}
+
 TEST(MutatingTest, MoveWithRvalue) {
   auto MakeRValueSrc = [] {
     std::vector<std::unique_ptr<int>> src;
-- 
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