goto loops
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Wow - looks like someone didn't agree with you, and didn't say why.
.45 ACP - because shooting twice is just silly
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001It's not something I'm going to lose any sleep over!
Sarchasm : The gulf between the author of sarcastic wit and the person who doesn't get it.
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This article/blog[^] Shows situations where goto statements can be used to greater effect than other soloutions although I must confess I can see better ways to code some of the examples, that the author ignores. I was always taught to avoid goto's at all costs and have always stuck to this advice, however, like you, I have noticed collegues use them a lot.
Funny how no-one even the comments could come up with a really good alternative (I agree for simplicity, the && is approach is best). How would I do it?
bool Do(params Func<bool>[] args)
{
foreach (var a in args)
if (!a())
return false;
return true;
}
...if (Do(Step1, Step2, Step3, Step4, Step5, Step6, Step7))
Console.WriteLine("Brillant!");xacc.ide
IronScheme - 1.0 RC 1 - out now!
((λ (x) `(,x ',x)) '(λ (x) `(,x ',x))) The Scheme Programming Language – Fourth Edition -
Lucian-aSterX wrote:
i give up.
Why? You're not French...
.45 ACP - because shooting twice is just silly
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001 -
Funny how no-one even the comments could come up with a really good alternative (I agree for simplicity, the && is approach is best). How would I do it?
bool Do(params Func<bool>[] args)
{
foreach (var a in args)
if (!a())
return false;
return true;
}
...if (Do(Step1, Step2, Step3, Step4, Step5, Step6, Step7))
Console.WriteLine("Brillant!");xacc.ide
IronScheme - 1.0 RC 1 - out now!
((λ (x) `(,x ',x)) '(λ (x) `(,x ',x))) The Scheme Programming Language – Fourth Edition -
It's not something I'm going to lose any sleep over!
Sarchasm : The gulf between the author of sarcastic wit and the person who doesn't get it.
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Wow - looks like someone didn't agree with you, and didn't say why.
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001:laugh:
Pete
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No serious programmer uses a
goto. EDIT (After the 1 vote)---------------- Okay - maybe we all do - when wegotothe bathroom....45 ACP - because shooting twice is just silly
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"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001modified on Monday, July 5, 2010 10:22 AM
Strange - when I post a comment along those lines, I get downvoted, but when you do it gets upvoted. Makes me think that some people here go more for the person than the message! Isn't the first time I have noticed that, though...
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Wasn't me even though I don't agree with you. But since you are so dead set I'm wrong, I challenge you: Show me ONE piece of code where a GoTo has a meaningful use!
Now your just setting him up to post code in the lounge and getting him flamed for doing so. I'm on to you ;P
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No serious programmer uses a
goto. EDIT (After the 1 vote)---------------- Okay - maybe we all do - when wegotothe bathroom....45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001modified on Monday, July 5, 2010 10:22 AM
John Simmons / outlaw programmer wrote:
No serious programmer uses a goto.
The whimsical ones do though :-D
"WPF has many lovers. It's a veritable porn star!" - Josh Smith
As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
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Strange - when I post a comment along those lines, I get downvoted, but when you do it gets upvoted. Makes me think that some people here go more for the person than the message! Isn't the first time I have noticed that, though...
You earn your upvote rights by scaring people. ;)
"WPF has many lovers. It's a veritable porn star!" - Josh Smith
As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
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Wasn't me even though I don't agree with you. But since you are so dead set I'm wrong, I challenge you: Show me ONE piece of code where a GoTo has a meaningful use!
10 Print "This Code is useless."
20 Goto 10"WPF has many lovers. It's a veritable porn star!" - Josh Smith
As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
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Strange - when I post a comment along those lines, I get downvoted, but when you do it gets upvoted. Makes me think that some people here go more for the person than the message! Isn't the first time I have noticed that, though...
Well if you must know I up voted him for the remark about the 1 vote and the goto the bathroom part. Could be that my sense of humor is a bit off today but I thought it was funny so...
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10 Print "This Code is useless."
20 Goto 10"WPF has many lovers. It's a veritable porn star!" - Josh Smith
As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
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Strange - when I post a comment along those lines, I get downvoted, but when you do it gets upvoted. Makes me think that some people here go more for the person than the message! Isn't the first time I have noticed that, though...
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Strange - when I post a comment along those lines, I get downvoted, but when you do it gets upvoted. Makes me think that some people here go more for the person than the message! Isn't the first time I have noticed that, though...
I got 1-voted, and probably from the same person that 1-voted you. I edited it because I thought that's why I was 1-voted - I had neglected to mention the one valid
gotoeveryone uses. Of course, the 1-voters can alsogotohell for all I care..45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001 -
I got 1-voted, and probably from the same person that 1-voted you. I edited it because I thought that's why I was 1-voted - I had neglected to mention the one valid
gotoeveryone uses. Of course, the 1-voters can alsogotohell for all I care..45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001 -
I got 1-voted, and probably from the same person that 1-voted you. I edited it because I thought that's why I was 1-voted - I had neglected to mention the one valid
gotoeveryone uses. Of course, the 1-voters can alsogotohell for all I care..45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001 -
Wasn't me even though I don't agree with you. But since you are so dead set I'm wrong, I challenge you: Show me ONE piece of code where a GoTo has a meaningful use!
I think the nested 'for' loop example is meaningful enough:
for (int i = 0; i < I_BOUND; i++) { for (int j = 0; j < J_BOUND; j++) { if (MyTestingFunction(i, j, k)) { goto LoopExit; } } } LoopExit:Steve McConnell gives a few other examples here[^]. To be clear, I'm not saying there aren't other ways of doing this (as there clearly are), and I don't believe there are any situations where using a goto provides funtionality above and beyond other native constructs (though am willing to be proved wrong!). I just don't agree that you can categorically state that use of goto is *always* wrong.Sarchasm : The gulf between the author of sarcastic wit and the person who doesn't get it.
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I think the nested 'for' loop example is meaningful enough:
for (int i = 0; i < I_BOUND; i++) { for (int j = 0; j < J_BOUND; j++) { if (MyTestingFunction(i, j, k)) { goto LoopExit; } } } LoopExit:Steve McConnell gives a few other examples here[^]. To be clear, I'm not saying there aren't other ways of doing this (as there clearly are), and I don't believe there are any situations where using a goto provides funtionality above and beyond other native constructs (though am willing to be proved wrong!). I just don't agree that you can categorically state that use of goto is *always* wrong.Sarchasm : The gulf between the author of sarcastic wit and the person who doesn't get it.
It's probably easier, but I still don't think it's a good use in this case. Sort of like exiting a room through the window. I'm not an expert on this, but can you be sure that jumping out of a nested loop like that doesn't leave something not cleaned up properly, stack e.g.?
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It's probably easier, but I still don't think it's a good use in this case. Sort of like exiting a room through the window. I'm not an expert on this, but can you be sure that jumping out of a nested loop like that doesn't leave something not cleaned up properly, stack e.g.?
It depends on the context - if
MyTestingFunction()is expensive to run then an intelligent way to exit the loop early is a pretty good reason, especially if the bounds of the data structure being traversed are very large. The variables in the loops are scoped by the braces so by the time the exit label is hit, the variables are out of scope and the GC can do its thing. Assuming thatMyTestingFunction()is stateless and isn't dealing with unmanaged resources, I don't believe there's a memory leak issue here.Sarchasm : The gulf between the author of sarcastic wit and the person who doesn't get it.
