On 6/16/2010 11:21 PM, Dick Hollenbeck wrote: > > wxstruct.h > > //C++ guarantees that operator delete checks its argument for null-ness > #ifndef SAFE_DELETE > #define SAFE_DELETE( p ) delete (p); (p) = NULL; > #endif > > > 1) what is this? > > 2) why it is needed? > > 3) why cannot i put it after an if() statement (trick question)? > > > I don't like it.
And it's redundant as there is a wxDELETE() macro defined in wxWidgets which you can safely put after an if() statement. It is defined in wx/defs.h along with a lot of other very handy definitions that hide platform and compiler differences. Many of them are not well documented so you may need to grep the source code. Wayne > > Dick > > > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > Post to : [email protected] > Unsubscribe : https://launchpad.net/~kicad-developers > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
