Em 07/05/2016 15:17, Dimitry Sibiryakov escreveu:
> 07.05.2016 20:00, Adriano dos Santos Fernandes wrote:
>> No, just no! It will not do this!
>>
>> You're free to write minimal test case compiling with maximum
>> optimization to demonstrate this.
>>
>> You will fail, I know.
>
> Try attached test and notice "B destructed" in the middle of output.
>
And you want what?
This is not a copy constructor!!
B(A& f)
{
printf("B copy constructor invoked\n");
v = f.v;
}
It needs to create and destroy a temporary B.
Optimizations on/off does not even affect this code.
Adriano
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