Things like that are added to OFFICIAL release docs. So they will appear in 5.00.
Best regards, Tomasz Janeczko amibroker.com ----- Original Message ----- From: Ton Sieverding To: [email protected] Sent: Saturday, May 26, 2007 9:29 AM Subject: Re: [amibroker] Re: Nested Switch() statements Tomasz is there a way to get new statements like SWITCH in the AFL on-line Help list so that it's possible to find ALL actual statements in the on-line Help list of : AFL Function Reference - Alphabetical list of functions ? Regards, Ton. ----- Original Message ----- From: Tomasz Janeczko To: [email protected] Sent: Friday, May 25, 2007 6:42 PM Subject: Re: [amibroker] Re: Nested Switch() statements Hello, This is new feature introduced in one of recent BETAs and not available in "official" guide. It is however described here: http://www.amibroker.com/guide/v50/keyword/switch.html Best regards, Tomasz Janeczko amibroker.com ----- Original Message ----- From: "t_ohrt" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, May 25, 2007 6:23 PM Subject: [amibroker] Re: Nested Switch() statements Interesting topic, but where in the Amibroker user´s guide can I find information covering the Switch() function? T.O. --- In [email protected], "Tomasz Janeczko" <[EMAIL PROTECTED]> wrote: > > Steve, > > No, I don't think it is worthwhile for speed reasons. > In AFL speed of execution of switch statement vs if-else is almost identical. > The only reason for using switch is that the code may look > "cleaner". > > Best regards, > Tomasz Janeczko > amibroker.com > ----- Original Message ----- > From: "Steve Dugas" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, May 25, 2007 5:26 PM > Subject: Re: [amibroker] Re: Nested Switch() statements > > > > Hi Tomasz - Do you thnk it is worthwhile ( maybe speed increase, for > > example? ) to convert existing if-else if-else if... over to Switch() ? > > Thank you! > > > > Steve > > > > ----- Original Message ----- > > From: "Tomasz Janeczko" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Friday, May 25, 2007 7:32 AM > > Subject: Re: [amibroker] Re: Nested Switch() statements > > > > > >> Hello, > >> > >> Frankly speaking fall-through is one of BEST features of switch () > >> statement. > >> I use it thousands of times. Implementations lacking that are missing > >> single most important thing in switch() statement. > >> > >> K&R "The C Programming Language" book is really recommended reading. > >> > >> Best regards, > >> Tomasz Janeczko > >> amibroker.com > >> ----- Original Message ----- > >> From: "Nigel Rowe" <[EMAIL PROTECTED]> > >> To: <[email protected]> > >> Sent: Friday, May 25, 2007 12:12 PM > >> Subject: Re: [amibroker] Re: Nested Switch() statements > >> > >> > >>> On Fri, 25 May 2007, Ton Sieverding wrote: > >>>> Can you please explain me why 'switch statements are a frequent > >>>> source of bugs' ? If the last CASE is a DEFAULT then all possible > >>>> cases are covered. Or am I missing something in the AFL SWITCH > >>>> statement ? > >>>> > >>>> switch ( expression ) > >>>> { > >>>> case constant-expression1 : statement; > >>>> case constant-expression2 : statement; > >>>> ... > >>>> case constant-expressionN : statement; > >>>> > >>>> default : statement; > >>>> > >>>> } > >>>> > >>>> > >>>> Ton. > >>> > >>> The 'standard' error when using a switch statement in 'C' and presumably > >>> AFL, is forgetting to put 'break;' statements in. > >>> > >>> To paraphrase your example (above) so it looks like this:- > >>> > >>> switch ( expression ) > >>> { > >>> case constant-expression1 : statement1; > >>> case constant-expression2 : statement2; > >>> ... > >>> case constant-expressionN : statementN; > >>> default : statement_default; > >>> } > >>> > >>> If you leave out the break statements, and > >>> expression==constant_expression1 you will execute statement1 (what you > >>> wanted) AND ALSO statement2 AND ALSO statement3 AND ALSO ... statementN > >>> AND ALSO statement_default. > >>> > >>> It's sometimes called the 'fall-through' bug. It's easy to miss, can be > >>> a right pain! > >>> > >>> > >>> -- > >>> Nigel Rowe > >>> rho \N{COMMERCIAL AT} swiftdsl \N{FULL STOP} com \N{FULL STOP} au > >>> > >>> > >>> > >>> Please note that this group is for discussion between users only. > >>> > >>> To get support from AmiBroker please send an e-mail directly to > >>> SUPPORT {at} amibroker.com > >>> > >>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >>> http://www.amibroker.com/devlog/ > >>> > >>> For other support material please check also: > >>> http://www.amibroker.com/support.html > >>> > >>> Yahoo! Groups Links > >>> > >>> > >>> > >>> > >>> > >> > >> > >> Please note that this group is for discussion between users only. > >> > >> To get support from AmiBroker please send an e-mail directly to > >> SUPPORT {at} amibroker.com > >> > >> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >> http://www.amibroker.com/devlog/ > >> > >> For other support material please check also: > >> http://www.amibroker.com/support.html > >> > >> Yahoo! Groups Links > >> > >> > >> > >> > > > > > > > > > > Please note that this group is for discussion between users only. > > > > To get support from AmiBroker please send an e-mail directly to > > SUPPORT {at} amibroker.com > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > http://www.amibroker.com/devlog/ > > > > For other support material please check also: > > http://www.amibroker.com/support.html > > > > Yahoo! Groups Links > > > > > > > > > > > Please note that this group is for discussion between users only. To get support from AmiBroker please send an e-mail directly to SUPPORT {at} amibroker.com For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: http://www.amibroker.com/devlog/ For other support material please check also: http://www.amibroker.com/support.html Yahoo! Groups Links
