do you use goto? [modified]

[Robert Rohde]

Philip Laureano wrote:

Rule #1: Don't use goto. Rule #2: Know when to break Rule #1. Rule #3: Never goto #2.

Do you like recursion? :) Rule #4: Know when to break Rule #3. Rule #5: Never goto #4 Rule #6: Know when to break Rule #5. ... Robert

[Oakman]

"Switch" is just "on x GOTO" so, yeah, all the time.

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[Roger Alsing 0]

In periods or on a weekly basis?

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[leppie]

Apply as needed :) (once in 6 months or so).

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[Vasudevan Deepak Kumar]

Rajesh R Subramanian wrote:

if-if-if statements

Wouldn't evaluating an expression upfront to a variable and then using a switch-case provide an elegant in that case?

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[BadKarma]

Burn him, he is a witch ;P

Learn from the mistakes of others, you may not live long enough to make them all yourself.

[Jamie Nordmeyer]

The only time I've ever used goto was in the QBasic days, and in Visual Basic when I was first learning that language. I've never used it in any C flavor language, and never allow it when doing code reviews at work.

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[Rajesh R Subramanian]

1. switch works only with integral types and so it cannot be used everywhere. 2. switch uses goto internally.

Nobody can give you wiser advice than yourself. - Cicero .·´¯`·->Rajesh<-·´¯`·. Codeproject.com: Visual C++ MVP

[leppie]

And now I will turn you into a frog! POOF!

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[BadKarma]

under any circumstance use goto I use the following

#define BeamMeUp(_goto) goto _goto

int AtPlanet()
{
bool bToDangerous = true;

if(bToDangerous)
  BeamMeUp(scotty);
else
  Fight();

scotty:
  return ToEnterprise();

}

Learn from the mistakes of others, you may not live long enough to make them all yourself.

[leckey 0]

Goto's are evil and real programmers never use them.

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[Ri Qen Sin]

I use label: … goto label whenever I have to use while (true) { … }

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[Steve Hansen]

To learn recursion you first need to know recursion!

[BadKarma]

Thanks allot leppie :mad: now i'm forced to make jumps :laugh:

Learn from the mistakes of others, you may not live long enough to make them all yourself.

[John M Drescher]

I have less than 5 gotos in the 500K+ lines of code I have written in the last 10 years so its quite rare for me.

John

[Nemanja Trifunovic]

Pakl wrote:

I am interested if you are using goto's

No, but I reserve the right to use it and not feel bad.

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[Dan Neely]

if uses goto internally. while uses goto internally. for uses goto internally. function calls use goto internally. Your CPU only knows goto internally. There's a reason why modern programming languages provide a collection of wrappers to hide goto from you.

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[Alan Balkany]

I haven't used a goto in 25 years of programming, but I like the option to be available in case I need it. It's been claimed that a goto is useful for exiting deeply-nested code when an error is detected. But in the evolution of my programming style, my methods have become much shorter and only rarely have deep nesting. I can only think of two occasions a goto was necessary. One was when I encountered a bug in IBM's PL/I compiler back in the 1980s, and I needed a goto to force sequential execution. (The next statement wasn't being executed.) The other time was in grad school in the 1990s when I was implementing a system that translated a flow graph drawn on the screen into C code. Each mechanism (a box on the screen representing a library component) was assigned a label, and gotos were part of the automatically-generated template for sequencing their execution. A goto would also be useful for a rapid fix under time pressure. It's good that gotos are discouraged. They're easy and the temptation to use them is great for that reason. (I used them constantly in BASIC when I first learned to program.) But code is already complex enough without making it more complex with abrupt changes in flow.

[leppie]

Haha, I didnt mean it like that, but go ahead :)

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[fboule]

It was only a simple example. It could be a more complex loop, like for a user menu or something else...