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-rw-r--r--src/corelib/tools/qshareddata.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/corelib/tools/qshareddata.h b/src/corelib/tools/qshareddata.h
index 826152b63a..4c4153a506 100644
--- a/src/corelib/tools/qshareddata.h
+++ b/src/corelib/tools/qshareddata.h
@@ -51,13 +51,17 @@ public:
const T *constData() const noexcept { return d; }
T *take() noexcept { return std::exchange(d, nullptr); }
+ Q_NODISCARD_CTOR
QSharedDataPointer() noexcept : d(nullptr) { }
~QSharedDataPointer() { if (d && !d->ref.deref()) delete d; }
+ Q_NODISCARD_CTOR
explicit QSharedDataPointer(T *data) noexcept : d(data)
{ if (d) d->ref.ref(); }
+ Q_NODISCARD_CTOR
QSharedDataPointer(T *data, QAdoptSharedDataTag) noexcept : d(data)
{}
+ Q_NODISCARD_CTOR
QSharedDataPointer(const QSharedDataPointer &o) noexcept : d(o.d)
{ if (d) d->ref.ref(); }
@@ -82,6 +86,7 @@ public:
reset(o);
return *this;
}
+ Q_NODISCARD_CTOR
QSharedDataPointer(QSharedDataPointer &&o) noexcept : d(std::exchange(o.d, nullptr)) {}
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSharedDataPointer)
@@ -139,17 +144,22 @@ public:
void detach() { if (d && d->ref.loadRelaxed() != 1) detach_helper(); }
+ Q_NODISCARD_CTOR
QExplicitlySharedDataPointer() noexcept : d(nullptr) { }
~QExplicitlySharedDataPointer() { if (d && !d->ref.deref()) delete d; }
+ Q_NODISCARD_CTOR
explicit QExplicitlySharedDataPointer(T *data) noexcept : d(data)
{ if (d) d->ref.ref(); }
+ Q_NODISCARD_CTOR
QExplicitlySharedDataPointer(T *data, QAdoptSharedDataTag) noexcept : d(data)
{}
+ Q_NODISCARD_CTOR
QExplicitlySharedDataPointer(const QExplicitlySharedDataPointer &o) noexcept : d(o.d)
{ if (d) d->ref.ref(); }
template<typename X>
+ Q_NODISCARD_CTOR
QExplicitlySharedDataPointer(const QExplicitlySharedDataPointer<X> &o) noexcept
#ifdef QT_ENABLE_QEXPLICITLYSHAREDDATAPOINTER_STATICCAST
: d(static_cast<T *>(o.data()))
@@ -179,6 +189,7 @@ public:
reset(o);
return *this;
}
+ Q_NODISCARD_CTOR
QExplicitlySharedDataPointer(QExplicitlySharedDataPointer &&o) noexcept : d(std::exchange(o.d, nullptr)) {}
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QExplicitlySharedDataPointer)