I’m using a MacBook Pro and can’t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
On Thu, Dec 07, 2017 at 11:59:34AM -0500, obrienj wrote:
I???m using a MacBook Pro and can???t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
The interrupt key definitely should work in a case like this. I tried your example on my Linux computer, and was able to interrupt it without any problem.
Could someone with a Mac please check this and make sure it works? Maybe it is a key mapping issue (just guessing).
Dave
Change your test condition to limit your infinite loop.
x := 0. [x <= 4] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr].
infinite loop 1 infinite loop 2 infinite loop 3 infinite loop 4 infinite loop 5
Even in a language that supports a "break" command the user must specify the condition for the break in his code.
On Thu, Dec 7, 2017 at 11:59 AM, obrienj obrienj@protonmail.com wrote:
I’m using a MacBook Pro and can’t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
It's not a question of how to avoid an infinite loop, the question is what to do if you end up with an unintended one. Supposedly, with a mac Cmd- should interrupt execution, but it doesn't seem to work.
http://wiki.squeak.org/squeak/899
-------- Original Message -------- Subject: Re: [Newbies] Infinite loops Local Time: December 7, 2017 6:34 PM UTC Time: December 8, 2017 2:34 AM From: limitcase@gmail.com To: obrienj obrienj@protonmail.com, A friendly place to get answers to even the most basic questions about Squeak. beginners@lists.squeakfoundation.org
Change your test condition to limit your infinite loop.
x := 0. [x <= 4] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr].
infinite loop 1 infinite loop 2 infinite loop 3 infinite loop 4 infinite loop 5
Even in a language that supports a "break" command the user must specify the condition for the break in his code.
On Thu, Dec 7, 2017 at 11:59 AM, obrienj obrienj@protonmail.com wrote:
I’m using a MacBook Pro and can’t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
You are pressing Cmd and the period key, right? The text in the email doesn't show the period. You need those two keys to interrupt.
-cbc
On Thu, Dec 7, 2017 at 8:54 PM, obrienj obrienj@protonmail.com wrote:
It's not a question of how to avoid an infinite loop, the question is what to do if you end up with an unintended one. Supposedly, with a mac Cmd- should interrupt execution, but it doesn't seem to work.
http://wiki.squeak.org/squeak/899
-------- Original Message -------- Subject: Re: [Newbies] Infinite loops Local Time: December 7, 2017 6:34 PM UTC Time: December 8, 2017 2:34 AM From: limitcase@gmail.com To: obrienj obrienj@protonmail.com, A friendly place to get answers to even the most basic questions about Squeak. <beginners@lists. squeakfoundation.org>
Change your test condition to limit your infinite loop.
x := 0. [x <= 4] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr].
infinite loop 1 infinite loop 2 infinite loop 3 infinite loop 4 infinite loop 5
Even in a language that supports a "break" command the user must specify the condition for the break in his code.
On Thu, Dec 7, 2017 at 11:59 AM, obrienj obrienj@protonmail.com wrote:
I’m using a MacBook Pro and can’t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
On Thu, Dec 7, 2017 at 5:59 PM, obrienj obrienj@protonmail.com wrote:
I’m using a MacBook Pro and can’t find a way to escape an infinite loop such as this:
x := 0. [x >= 0] whileTrue: [x := x +1. Transcript show: 'infinite loop ', x; cr]
The the interrupt key (Alt- or Cmd-) does not work, instead I have to force quite Squeak. Is there a reliable to way to escape an endless loop?
On a Mac it's Cmd and Period: [image: Inline image 1] - Bert -
beginners@lists.squeakfoundation.org
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David T. Lewis -
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obrienj