Re: [Development] Copying a struct the easy (perhaps too easy) way
> On 16 Sep 2023, at 02:05, Henry Skoglund 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 -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
Re: [Development] Copying a struct the easy (perhaps too easy) way
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 -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
Re: [Development] Copying a struct the easy (perhaps too easy) way
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.). -- Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer KDAB (France) S.A.S., a KDAB Group company Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com KDAB - The Qt, C++ and OpenGL Experts smime.p7s Description: Firma crittografica S/MIME -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
