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QVLA: separate control from inline storage [6/N]: emplace_back()

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Move emplace_back() down from QVarLengthArray to QVLABase.

Task-number: QTBUG-84785
Change-Id: I29020737007f245c3b52fd7960369262510c0d52
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This commit is contained in:
Marc Mutz 2021-11-30 16:35:06 +01:00
parent 61be5c94ed
commit 4af6ba40c2
1 changed files with 12 additions and 1 deletions
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13
src/corelib/tools/qvarlengtharray.h
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@ -194,6 +194,16 @@ public:
iterator erase(const_iterator pos) { return erase(pos, pos + 1); }
protected:
template <typename...Args>
reference emplace_back_impl(qsizetype prealloc, void *array, Args&&...args)
{
if (size() == capacity()) // ie. size() != 0
reallocate_impl(prealloc, array, size(), size() << 1);
reference r = *new (end()) T(std::forward<Args>(args)...);
++s;
return r;
}
template <typename S>
bool equal(const QVLABase<S> &other) const
{
@ -514,7 +524,8 @@ public:
template <typename...Args>
iterator emplace(const_iterator pos, Args &&...args);
template <typename...Args>
T &emplace_back(Args &&...args) { return *emplace(cend(), std::forward<Args>(args)...); }
T &emplace_back(Args &&...args)
{ return Base::emplace_back_impl(Prealloc, this->array, std::forward<Args>(args)...); }
#ifdef Q_QDOC