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-rw-r--r--absl/container/inlined_vector.h19
1 files changed, 12 insertions, 7 deletions
diff --git a/absl/container/inlined_vector.h b/absl/container/inlined_vector.h
index e0bb900..4bf9c18 100644
--- a/absl/container/inlined_vector.h
+++ b/absl/container/inlined_vector.h
@@ -365,13 +365,14 @@ class InlinedVector {
// InlinedVector::emplace_back()
//
// Constructs and appends an object to the inlined vector.
+ //
+ // Returns a reference to the inserted element.
template <typename... Args>
- void emplace_back(Args&&... args) {
+ value_type& emplace_back(Args&&... args) {
size_type s = size();
assert(s <= capacity());
if (ABSL_PREDICT_FALSE(s == capacity())) {
- GrowAndEmplaceBack(std::forward<Args>(args)...);
- return;
+ return GrowAndEmplaceBack(std::forward<Args>(args)...);
}
assert(s < capacity());
@@ -383,7 +384,7 @@ class InlinedVector {
tag().set_inline_size(s + 1);
space = inlined_space();
}
- Construct(space + s, std::forward<Args>(args)...);
+ return Construct(space + s, std::forward<Args>(args)...);
}
// InlinedVector::push_back()
@@ -703,26 +704,30 @@ class InlinedVector {
}
template <typename... Args>
- void GrowAndEmplaceBack(Args&&... args) {
+ value_type& GrowAndEmplaceBack(Args&&... args) {
assert(size() == capacity());
const size_type s = size();
Allocation new_allocation(allocator(), 2 * capacity());
- Construct(new_allocation.buffer() + s, std::forward<Args>(args)...);
+ value_type& new_element =
+ Construct(new_allocation.buffer() + s, std::forward<Args>(args)...);
UninitializedCopy(std::make_move_iterator(data()),
std::make_move_iterator(data() + s),
new_allocation.buffer());
ResetAllocation(new_allocation, s + 1);
+
+ return new_element;
}
void InitAssign(size_type n);
void InitAssign(size_type n, const value_type& t);
template <typename... Args>
- void Construct(pointer p, Args&&... args) {
+ value_type& Construct(pointer p, Args&&... args) {
AllocatorTraits::construct(allocator(), p, std::forward<Args>(args)...);
+ return *p;
}
template <typename Iter>