do you use goto? [modified]

[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.

Kyosa Jamie Nordmeyer - Taekwondo Yi (2nd) Dan Portland, Oregon, USA

[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.

Shhhhh..... http://craptasticnation.blogspot.com/[^]

[Ri Qen Sin]

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

So the creationist says: Everything must have a designer. God designed everything. I say: Why is God the only exception? Why not make the "designs" (like man) exceptions and make God a creation of man?

[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.

Programming Blog utf8-cpp

[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.

You know, every time I tried to win a bar-bet about being able to count to 1000 using my fingers I always got punched out when I reached 4.... -- El Corazon

[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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IronScheme - 1.0 alpha 3 out now

[fboule]

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

[Roger Wright]

I haven't used a GOTO in a long time, though it was perfectly natural to use it when there was little else available. Considering that I started with JP, JZ, JNZ, etc, GOTO seemed a logical next step. Now that modern languages include so many more functional constructs, it would be difficult to find a reason for using GOTO. I suspect that, if the need existed, it would be due to timing/memory constraints and I'd be smarter to go back to Assembly code to optimize the routine. That being said, I don't consider the use of GOTO bad form, if it's appropriate to the problem at hand - a state machine implementation, for instance.

"A Journey of a Thousand Rest Stops Begins with a Single Movement"

[Jorgen Andersson]

Break?

[PIEBALDconsult]

An occasional goto case in C#. Otherwise not since I advanced from BASIC.

[Robert Royall]

I've had to use GOTO for programming Access/VB6 forms when doing error handling. It was basically a poor man's version of the Finally block, used to clean up objects or database connections/recordsets. I don't think I've ever had any other instances where it was appropriate.

Imagine that you are hired to build a bridge over a river. The river gets slightly wider every day; sometimes it shrinks but nobody can predict when. Your contract says you can't use concrete or steel - the client only provides timber and cut stone (but won't tell you what kind). Gravity changes from hour to hour, as does the viscosity of air. Your only tools are a hacksaw, a chainsaw, a rubber mallet, and a length of rope. Welcome to my world. -Me explaining my job to an engineer