Software Engineering Stack Exchange
Software Engineering Stack Exchange

Questions tagged [goto]

15 questions
108
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11 answers

What kind of bugs do "goto" statements lead to? Are there any historically significant examples?

I understand that save for breaking out of loops nested in loops; the goto statement is evaded and reviled as a bug prone style of programming, to never be used. Alt Text: "Neal Stephenson thinks it's cute to name his labels 'dengo' " See the…
Anon
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66
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12 answers

Is this a decent use-case for goto in C?

I really hesitate to ask this, because I don't want to "solicit debate, arguments, polling, or extended discussion" but I'm new to C and want to gain more insight into common patterns used in the language. I recently heard some distaste for the…
Robz
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47
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12 answers

Avoiding the goto voodoo?

I have a switch structure that has several cases to handle. The switch operates over an enum which poses the issue of duplicate code through combined values: // All possible combinations of One - Eight. public enum ExampleEnum { One, Two,…
Hazel へいぜる
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41
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10 answers

What is so bad with goto when it's used for these obvious and relevant cases?

I have always known that goto is something bad, locked in a basement somewhere never to be seen for good but I ran into a code example today that makes perfect sense to use goto. I have an IP where I need to check if is within a list of IPs and then…
php_nub_qq
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34
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14 answers

Is using goto ever worthwhile?

goto is almost universally discouraged. Is using this statement ever worthwhile?
Casebash
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31
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10 answers

Do we still have a case against the goto statement?

Possible Duplicate: Is it ever worthwhile using goto? In a recent article, Andrew Koenig writes: When asked why goto statements are harmful, most programmers will say something like "because they make programs hard to understand." Press harder,…
fredoverflow
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15
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7 answers

Does this justify goto statements?

I came across this question a second ago, and I'm pulling some of the material off of there: Is there a name for the 'break n' construct? This appears to be a needlessly complex way for people to have to instruct the program to break out of a…
Panzercrisis
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13
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7 answers

Best practice to "continue" from inside a nested loop?

Here is a simplified sample. Basically, it does checks on a string from a string list. If the check passes, it will remove that string (filterStringOut(i);), and it is no longer necessary to continue any other checks. Thus continue…
Anon
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8
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3 answers

Why was GOTO included in PHP 5?

I discovered some time ago that the GOTO control keyword was introduced in PHP 5.3.0. http://php.net/manual/en/control-structures.goto.php Why did it happen? What are the language design goals behind this? Did the PHP developers community asked…
Tulains Córdova
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2
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3 answers

Can you pass a label as an argument, and have the function return to it?

So I would like to be able to call a function like this: void func(1, 2, 3, (void*)label) // can return normal or to the labels //some code label: //different code Is it possible, and is it bad practice?
JavaProphet
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2 answers

Is goto to improve DRY-ness OK?

My code has many checks to detect errors in various cases (many conditions would result in the same error), inside a function returning an error struct. Instead of looking like this: err_struct myfunc(...) { err_struct error = { .error = false…
Marco Scannadinari
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0
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3 answers

Are there languages that allow goto statement to only go down?

goto statements can sometimes be useful to go down (to lower lines of code) in code, but can create a mess if used to go up (to higher lines of code). Therefore, I am wondering if there is any language that only allows goto statement to go down,…
Akavall
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0
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6 answers

Syntax for goto labels

In C, C++ and some dialects of BASIC, goto labels are declared with the syntax label:. I'm working on a language that uses name: type as the syntax for variable declarations, so I'd prefer if possible to use something a bit more distinctive for…
rwallace
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3 answers

I just used a goto statement. Is this OK?

I just wrote this code that uses a goto statement. if (PyMethod_Check(attrib_value)) { PyObject *im_self = PyObject_GetAttrString(attrib_value, "im_self"); if (im_self == Py_None) { js_value = FunctionTemplate::New(isolate,…
tbodt
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Single exit of function uses goto

Apropos of What kind of bugs do "goto" statements lead to? Are there any historically significant examples? I am not that learned in C, and to me the puzzle is that a single exit of a function is mandatory, but a goto is considered bad. Often one…
user3824211
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