Author: Bo Persson
Date: 12:34:12 10/18/02
Go up one level in this thread
On October 18, 2002 at 09:11:30, Gerd Isenberg wrote: >On October 17, 2002 at 19:29:30, Peter Fendrich wrote: > >>Is there any reason why 'protected' data should have better performance than >>'public'? What could the compier do with this extra information? >>Peter > >Hi Peter, > >access qualification has no impact on performance. Another thing are 'const' >functions. The information that a function does not change anything inside this >object permits the compiler to do additional optimizations, eg. holding data >members in registers. > >Gerd No! The compiler can see for itself whether you change the data or not. If you declare a member function const and then try to change the object anyway, the compiler complains. Because it can tell! Bo Persson bop2@telia.com
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.