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[util.smartptr.enab], [util.smartptr.shared.const] Add \exposid to weak_this #7590

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Merged
tkoeppe merged 1 commit into from
Feb 10, 2025
Merged

[util.smartptr.enab], [util.smartptr.shared.const] Add \exposid to weak_this #7590

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16 changes: 8 additions & 8 deletions source/memory.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -3331,10 +3331,10 @@
then \tcode{remove_cv_t<Y>*} shall be implicitly convertible to \tcode{T*} and
the constructor evaluates the statement:
\begin{codeblock}
if (p != nullptr && p->weak_this.expired())
p->weak_this = shared_ptr<remove_cv_t<Y>>(*this, const_cast<remove_cv_t<Y>*>(p));
if (p != nullptr && p->@\exposid{weak-this}@.expired())
p->@\exposid{weak-this}@ = shared_ptr<remove_cv_t<Y>>(*this, const_cast<remove_cv_t<Y>*>(p));
\end{codeblock}
The assignment to the \tcode{weak_this} member is not atomic and
The assignment to the \exposid{weak-this} member is not atomic and
conflicts with any potentially concurrent access to the same object\iref{intro.multithread}.

\indexlibraryctor{shared_ptr}%
Expand Down Expand Up @@ -5028,7 +5028,7 @@
weak_ptr<T const> weak_from_this() const noexcept;

private:
mutable weak_ptr<T> weak_this; // \expos
mutable weak_ptr<T> @\exposid{weak-this}@; // \expos
};
}
\end{codeblock}
Expand All @@ -5046,7 +5046,7 @@
\begin{itemdescr}
\pnum
\effects
Value-initializes \tcode{weak_this}.
Value-initializes \exposid{weak-this}.
\end{itemdescr}

\indexlibrarymember{operator=}{enable_shared_from_this}%
Expand All @@ -5061,7 +5061,7 @@

\pnum
\begin{note}
\tcode{weak_this} is not changed.
\exposid{weak-this} is not changed.
\end{note}
\end{itemdescr}

Expand All @@ -5075,7 +5075,7 @@
\begin{itemdescr}
\pnum
\returns
\tcode{shared_ptr<T>(weak_this)}.
\tcode{shared_ptr<T>(\exposid{weak-this})}.
\end{itemdescr}

\indexlibraryglobal{weak_ptr}%
Expand All @@ -5088,7 +5088,7 @@
\begin{itemdescr}
\pnum
\returns
\tcode{weak_this}.
\exposid{weak-this}.
\end{itemdescr}

\rSec2[util.smartptr.hash]{Smart pointer hash support}
Expand Down