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Fix example code in F.20. (#1109)

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Mitch Phillips 2017-12-22 13:01:42 -08:00 committed by Sergey Zubkov
parent 044a4b277e
commit bd948ee839
1 changed files with 2 additions and 2 deletions
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@ -2997,9 +2997,9 @@ Such older advice is now obsolete; it does not add value, and it interferes with
vector<int> g(const vector<int>& vx)
{
// ...
f() = vx; // prevented by the "const"
fct() = vx; // prevented by the "const"
// ...
return f(); // expensive copy: move semantics suppressed by the "const"
return fct(); // expensive copy: move semantics suppressed by the "const"
}
The argument for adding `const` to a return value is that it prevents (very rare) accidental access to a temporary.