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[basic.life] Reference [intro.object] in transparent replacement note and improve example #7331

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[basic.life] Reference [intro.object] in transparent replacement note and improve example #7331

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19 changes: 15 additions & 4 deletions source/basic.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -3660,6 +3660,13 @@
lifetime of the new object has started, can be used to manipulate the new
object.

\begin{note}
Additionally, if the requirements in \ref{intro.object}
for the creation of subobjects are met,
once the lifetime of the new object has started,
the containing object of the original object
can be used to manipulate the new object.
\end{note}
\begin{example}
\begin{codeblock}
struct C {
Expand All @@ -3677,10 +3684,14 @@
return *this;
}

C c1;
C c2;
c1 = c2; // well-defined
c1.f(); // well-defined; \tcode{c1} refers to a new object of type \tcode{C}
void g() {
C c1;
C c2;
c1 = c2; // well-defined
c1.f(); // well-defined; \tcode{c1} refers to a new object of type \tcode{C}
new (&c1.i) int(42); // well-defined
int j = c1.i; // well-defined
}
\end{codeblock}
\end{example}
\begin{note}
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