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-rw-r--r--absl/container/inlined_vector.h94
1 files changed, 45 insertions, 49 deletions
diff --git a/absl/container/inlined_vector.h b/absl/container/inlined_vector.h
index 642dae6c..5f3f0095 100644
--- a/absl/container/inlined_vector.h
+++ b/absl/container/inlined_vector.h
@@ -66,12 +66,11 @@ namespace absl {
// designed to cover the same API footprint as covered by `std::vector`.
template <typename T, size_t N, typename A = std::allocator<T>>
class InlinedVector {
+ static_assert(N > 0, "InlinedVector requires inline capacity greater than 0");
constexpr static typename A::size_type inlined_capacity() {
return static_cast<typename A::size_type>(N);
}
- static_assert(inlined_capacity() > 0, "InlinedVector needs inlined capacity");
-
template <typename Iterator>
using DisableIfIntegral =
absl::enable_if_t<!std::is_integral<Iterator>::value>;
@@ -131,7 +130,8 @@ class InlinedVector {
InlinedVector(std::initializer_list<value_type> init_list,
const allocator_type& alloc = allocator_type())
: allocator_and_tag_(alloc) {
- AppendRange(init_list.begin(), init_list.end());
+ AppendRange(init_list.begin(), init_list.end(),
+ IteratorCategory<decltype(init_list.begin())>{});
}
// Creates an inlined vector with elements constructed from the provided
@@ -144,7 +144,7 @@ class InlinedVector {
InlinedVector(InputIterator first, InputIterator last,
const allocator_type& alloc = allocator_type())
: allocator_and_tag_(alloc) {
- AppendRange(first, last);
+ AppendRange(first, last, IteratorCategory<InputIterator>{});
}
// Creates a copy of `other` using `other`'s allocator.
@@ -366,7 +366,6 @@ class InlinedVector {
// Returns a copy of the allocator of the inlined vector.
allocator_type get_allocator() const { return allocator(); }
-
// ---------------------------------------------------------------------------
// InlinedVector Member Mutators
// ---------------------------------------------------------------------------
@@ -376,7 +375,8 @@ class InlinedVector {
// Replaces the contents of the inlined vector with copies of the elements in
// the provided `std::initializer_list`.
InlinedVector& operator=(std::initializer_list<value_type> init_list) {
- AssignRange(init_list.begin(), init_list.end());
+ AssignRange(init_list.begin(), init_list.end(),
+ IteratorCategory<decltype(init_list.begin())>{});
return *this;
}
@@ -453,14 +453,15 @@ class InlinedVector {
// inlined vector with copies of the values in the provided
// `std::initializer_list`.
void assign(std::initializer_list<value_type> init_list) {
- AssignRange(init_list.begin(), init_list.end());
+ AssignRange(init_list.begin(), init_list.end(),
+ IteratorCategory<decltype(init_list.begin())>{});
}
// Overload of `InlinedVector::assign()` to replace the contents of the
// inlined vector with values constructed from the range [`first`, `last`).
template <typename InputIterator, DisableIfIntegral<InputIterator>* = nullptr>
void assign(InputIterator first, InputIterator last) {
- AssignRange(first, last);
+ AssignRange(first, last, IteratorCategory<InputIterator>{});
}
// `InlinedVector::resize()`
@@ -845,40 +846,28 @@ class InlinedVector {
void Destroy(pointer from, pointer to);
template <typename Iterator>
- void AppendRange(Iterator first, Iterator last, std::input_iterator_tag) {
- std::copy(first, last, std::back_inserter(*this));
- }
-
- template <typename Iterator>
void AppendRange(Iterator first, Iterator last, std::forward_iterator_tag);
template <typename Iterator>
- void AppendRange(Iterator first, Iterator last) {
- AppendRange(first, last, IteratorCategory<Iterator>());
- }
-
- template <typename Iterator>
- void AssignRange(Iterator first, Iterator last, std::input_iterator_tag);
+ void AppendRange(Iterator first, Iterator last, std::input_iterator_tag);
template <typename Iterator>
void AssignRange(Iterator first, Iterator last, std::forward_iterator_tag);
template <typename Iterator>
- void AssignRange(Iterator first, Iterator last) {
- AssignRange(first, last, IteratorCategory<Iterator>());
- }
+ void AssignRange(Iterator first, Iterator last, std::input_iterator_tag);
iterator InsertWithCount(const_iterator position, size_type n,
const_reference v);
- template <typename InputIterator>
- iterator InsertWithRange(const_iterator position, InputIterator first,
- InputIterator last, std::input_iterator_tag);
-
template <typename ForwardIterator>
iterator InsertWithRange(const_iterator position, ForwardIterator first,
ForwardIterator last, std::forward_iterator_tag);
+ template <typename InputIterator>
+ iterator InsertWithRange(const_iterator position, InputIterator first,
+ InputIterator last, std::input_iterator_tag);
+
// Stores either the inlined or allocated representation
union Rep {
using ValueTypeBuffer =
@@ -889,7 +878,7 @@ class InlinedVector {
// Structs wrap the buffers to perform indirection that solves a bizarre
// compilation error on Visual Studio (all known versions).
struct InlinedRep {
- ValueTypeBuffer inlined[inlined_capacity()];
+ ValueTypeBuffer inlined[N];
};
struct AllocatedRep {
AllocationBuffer allocation;
@@ -1364,15 +1353,8 @@ void InlinedVector<T, N, A>::AppendRange(Iterator first, Iterator last,
template <typename T, size_t N, typename A>
template <typename Iterator>
-void InlinedVector<T, N, A>::AssignRange(Iterator first, Iterator last,
+void InlinedVector<T, N, A>::AppendRange(Iterator first, Iterator last,
std::input_iterator_tag) {
- // Optimized to avoid reallocation.
- // Prefer reassignment to copy construction for elements.
- iterator out = begin();
- for (; first != last && out != end(); ++first, ++out) {
- *out = *first;
- }
- erase(out, end());
std::copy(first, last, std::back_inserter(*this));
}
@@ -1399,6 +1381,20 @@ void InlinedVector<T, N, A>::AssignRange(Iterator first, Iterator last,
}
template <typename T, size_t N, typename A>
+template <typename Iterator>
+void InlinedVector<T, N, A>::AssignRange(Iterator first, Iterator last,
+ std::input_iterator_tag) {
+ // Optimized to avoid reallocation.
+ // Prefer reassignment to copy construction for elements.
+ iterator out = begin();
+ for (; first != last && out != end(); ++first, ++out) {
+ *out = *first;
+ }
+ erase(out, end());
+ std::copy(first, last, std::back_inserter(*this));
+}
+
+template <typename T, size_t N, typename A>
auto InlinedVector<T, N, A>::InsertWithCount(const_iterator position,
size_type n, const_reference v)
-> iterator {
@@ -1414,20 +1410,6 @@ auto InlinedVector<T, N, A>::InsertWithCount(const_iterator position,
}
template <typename T, size_t N, typename A>
-template <typename InputIterator>
-auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
- InputIterator first,
- InputIterator last,
- std::input_iterator_tag)
- -> iterator {
- assert(position >= begin() && position <= end());
- size_type index = position - cbegin();
- size_type i = index;
- while (first != last) insert(begin() + i++, *first++);
- return begin() + index;
-}
-
-template <typename T, size_t N, typename A>
template <typename ForwardIterator>
auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
ForwardIterator first,
@@ -1446,6 +1428,20 @@ auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
return it_pair.first;
}
+template <typename T, size_t N, typename A>
+template <typename InputIterator>
+auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
+ InputIterator first,
+ InputIterator last,
+ std::input_iterator_tag)
+ -> iterator {
+ assert(position >= begin() && position <= end());
+ size_type index = position - cbegin();
+ size_type i = index;
+ while (first != last) insert(begin() + i++, *first++);
+ return begin() + index;
+}
+
} // namespace absl
#endif // ABSL_CONTAINER_INLINED_VECTOR_H_
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-04 07:24:47 +0000