>>>>> "SF" == Shlomi Fish <shlo...@iglu.org.il> writes:
SF> On Thursday 14 Apr 2011 09:15:35 Uri Guttman wrote: >> >>>>> "PS" == Peter Scott <pe...@psdt.com> writes: PS> Here is the definitive explanation: >> http://www.cs.utexas.edu/users/EWD/ PS> ewd02xx/EWD215.PDF . >> >> having heard about that article for many years it was interesting to >> read it. it may be over the head of some members here but useful to read >> anyway. it doesn't go into any practical reasons why goto is bad. it >> just says the logical complexity (his index data) goes way up with gotos >> but stays reasonable with high level flow controls >> (if/else/while/sub/etc.). >> SF> Quoting my post: SF> [QUOTE] SF> The entire "GOTO statement considered harmful" is quite a SF> myth. Granted, Dijkstra wrote an article with this title, and many SF> people agreed with him. But, on the other hand, some people have SF> demonstrated that it is possible to do structured programming with SF> goto statements, and sometimes even better with them than without SF> them. demonstrations don't mean a thing. i did tons of assembler coding and was even object oriented and my goto use was cleaner than most high level coders. i still wouldn't want to go back to that. SF> For example, Don Knuth wrote an article "Structured Programming SF> Using Goto Statements" (rumouredly sub-titled "'Goto Statement SF> Considered Harmful' Considered Harmful") in which he deomnstrated SF> exactly that. And I take this view as well. knuth was making more of a joke with that. also he is knuth. you are not knuth. SF> Don't get me wrong, I don't advocate a goto-spaghetti, like I once SF> saw in old BASIC programs. But goto's have their use. wrong. especially wrong for newbies. even more wrong for newbies learning perl. SF> When programming in C, I find myself using goto's whenever I feel SF> the need to. This occurs less in Perl where I have other powerful SF> constructs. then you don't know how to code well in c. it may not be as nice as perl for some flow control things but goto is never needed in c either. i have seen it used and there are always better ways to code it than with gotos. you just need to know other techniques and none of them are convoluted. a better design helps too. uri -- Uri Guttman ------ u...@stemsystems.com -------- http://www.sysarch.com -- ----- Perl Code Review , Architecture, Development, Training, Support ------ --------- Gourmet Hot Cocoa Mix ---- http://bestfriendscocoa.com --------- -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
