[Development] Copying a struct the easy (perhaps too easy) way

[Volker Hilsheimer]

> On 16 Sep 2023, at 02:05, Henry Skoglund <henry at tungware.se> wrote:
> 
> On 2023-09-16 01:55, Giuseppe D'Angelo via Development wrote:
>> Wrong mailing list?
>> 
>> Il 16/09/23 01:41, Henry Skoglund ha scritto:
>>> S a;
>>> S b = a.clone();
>>> 
>>> it seems to work like a charm (6.5.2 on Linux and the Mac. 5.15.2 on
>>> Windows) but my question is if it's kosher?
>> 
>> You class has value semantics, so:
>> 
>> S b = a;
>> 
>> 
>>> I have bad memories from my MFC days in the previous century doing this
>>> simple cloning but maybe it's considered good code now...
>> 
>> Many types in MFC has value semantics as well (CString, COleDateTime, etc.).
>> 
> 
> Thanks Guiseppe and sorry if this was a kind of noob question 😄

Nothing wrong with asking noob questions, and designing types in C++ has not become less complex since MFC was made. You might want to read up about the rule of three/five/zero:

https://en.cppreference.com/w/cpp/language/rule_of_three

Cheers,
Volker