On Friday 07 April 2017 15:02:55 Lars Knoll wrote: > There might be a little catch with regards to structs containing members > that are 8 bytes in size (aka quint64). Are those getting passed in > registers on 32bit ARM?
Forget register passing. To a first approximation, it does not matter. If you pass by cref, you surely force the value on the stack, anyway. What pass-by-value has going for it is the elimination of memory, and with it the aliasing and const_cast problems that make the compiler's and developer's work hard. Please watch Chandler Carruth's BoostCon 2013 presentation for the pov of compiler writers (https://www.youtube.com/watch?v=eR34r7HOU14) and Lawrence Crowl's CppCon 2014 presentation for the pov of a developer (https://www.youtube.com/watch?v=17rtjq9r27M). Thanks, Marc -- Marc Mutz <[email protected]> | Senior Software Engineer KDAB (Deutschland) GmbH & Co.KG, a KDAB Group Company Tel: +49-30-521325470 KDAB - The Qt, C++ and OpenGL Experts _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
