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How do you name your GoTo labels? I use rarely often so I'm having a hard time finding good names.
Please refrain from the classical 'goto is evil and eat your code alive discussion'
Started by dr. evil on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
In fortran, I use goto for rollbacks, and I normally start from 999 backwards (in fortran, goto labels are only numeric)
callIn batch files....
As such, my goto labels are either begin or finally .
Need it for 2 cases.
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Labels and GOTO s are considered bad practice and as far as I know there is no reason to use it in C#.
What is the use of labels in C#?
Started by reshefm on
, 13 posts
by 13 people.
Answer Snippets (Read the full thread at stackoverflow):
You place a label at the end of the function, where you do your cleanup, then 'goto usage of exception handling can obviate....
The problem is that people tend it fails.
There is nothing wrong with labels and goto's in themselves.
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In a Windows batch file, I am taking an optional parameter that allows the caller to jump to the middle of the batch file and resume from there.
For example:
if [%1] neq [] ( echo Starting from step %1 goto %1 if %errorlevel% neq 0 goto error ) :step1...
Started by Daniel Fortunov on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
You will need to validate the passed value is a valid label before the goto" GOTO :step2 IF "%1" == "step3" GOTO :step3 IF "%1" == "step4" GOTO :step4 ECHO %1 is not valid label Label....
If errorlevel...
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Hi
Currently I am working on a project where goto statements are heavely used. The main purpose of goto statements is to have one cleanup section in routine rather than multiple return statements. Like below
BOOL foo() { BOOL bRetVal = FALSE; int *p=NULL...
Started by Alien01 on
, 34 posts
by 33 people.
Answer Snippets (Read the full thread at stackoverflow):
If I dont use goto to work....
2) goto section is used to cleanup code and set return value .
Using GOTO labels and only to one label.
Making goto a standard part of your logic, something has flown off the tracks.
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I've heard rumors that PHP6 is planning on introducing a "goto" command. What is it supposed to be doing, once PHP6 gets out?
I've tried searching a bit, but haven't found anything awfully descriptive. I understand that it won't be a " GOTO 10 "-like ...
Started by Henrik Paul on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
You can do something likeGranted, I am not a PHP programmer, and I don't know what PHP's exact implementation of GOTO will look like, but here is my understanding....
Is to have named labels that the GOTO statement can jump to by name.
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How to write this without goto:
ob_start(); $a = 0; echo "START of LEFT<br />"; begin: if($a > 0) { echo "CONTENT LEFT: $a<BR />"; <VERY DIFFICULT ALGORHITM> goto end; } <... ALL THE REST CODE OF LEFT ...> echo "END of LEFT&...
Started by Xamas on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
For example look at this math expression parser i've witten in C in functions and where you have let's say:
goto apocalypse
you'll have:
Apocalypse();
That's the long.
Recursive functions instead of goto.
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I have process that needs to create a bunch of records in the database and roll everything back if anything goes wrong. What I want to do is this:
Public Structure Result Public Success as Boolean Public Message as String End Structure Private _Repository...
Started by Micah on
, 14 posts
by 14 people.
Answer Snippets (Read the full thread at stackoverflow):
The only exception I can think of was in vb with the statement On Error Goto inherently wrong with goto, but....
Anytime I have had to think about using a GOTO statement, I try and refactor the code.
I would say extremely sparingly.
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Everyone is aware of Dijkstra's Letters to the editor: go to statement considered harmful (also here .html transcript and here .pdf) and there has been a formidable push since that time to eschew the goto statement whenever possible. While it's possible...
Started by Kyle Cronin on
, 40 posts
by 40 people.
Answer Snippets (Read the full thread at stackoverflow):
If the variable....
goto 12
The GOTO between labels 76 and 54 is a version of computed goto.
Knuth answered this question ...more calculation...
labels cannot be descriptive, goto's can be bad."
Cheers
Donald E.
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I find that using labels inside Perl subroutines, to break from multiple loops, or to redo some parts with updated variables, very helpful. How is this coding style seen by the community? Is using labels inside subroutines frowned upon?
Started by Geo on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
goto Label that gets ....
For example:
my $i = 10; Label: # ...
There is usually no reason to use goto LABEL .
Using goto LABEL is strongly discouraged.
Which means you don't need to use a label).
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UPDATED:
Here are some labels I was able to get from a guy who use to work in a Post office way back in 2002.
He states these were Labels printed out as Test/Trainees labels as the PostCode shows (AA1). AA1 is not a real post code, it was one post Office...
Started by horizonlabels on
, 10 posts
by 5 people.
Answer Snippets (Read the full thread at stampboards):
SD White Trainiee 2002 Void Label
http://www.ebay.co.uk/itm/270904043219?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649
Also here is another....
In the White (SD) label, link above went to the Sold 1st Class link, here is the correct link.
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