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Computer Science

Scorching goIITian

Joined:	25 Nov 2008
Post:	210

23 Mar 2009 20:26:34 IST

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382

comp

None

How many times is the copy constructor invoked in the following code? Mention when it is invoked also.
Trial func(Trial u)
{
Trial v(u);
Trial w=v;
return w;
}
void main()
{
Trial x;
2
19
Trial y=func(x);
Trial z=func(y);
}

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kabi

Blazing goIITian

Joined: 11 Jan 2009

Posts: 575

23 Mar 2009 20:36:53 IST

Like 1 people liked this

two times func() is called

each time it is called 4 times copy constructors .

that r ::

1 . when d parameter is passed by value by u .

2. when v is initialized.

3. when w is initialized.

4.when w is returned .

so total 8 times .

Sorry i couldn't give d answer of ur other's question. Half of sys still left.

Thank u and All the best.

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