precedence violation
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precedence violation
by doc_brown
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Hello, everybody I think there is a serious bug such as precedence violation. When I run the code x= 1.0 print 2.718281828**(- x**2) on Boo, I get 2.718281828. It looks like not only x, but -x is taken to the power of 2. On both CPython and IronPython the same code gives me correct result 0.367879441234. I run Boo 0.8.2 0n .Net 3.5 Thank you very much for your attention. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by doc_brown
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Hi everybody, I know this topic may not be of general interest, or may be it is known issue (still not fixed though)... Could anyone just tell me how can I report a bug? Boo is a greatest language I ever worked with and I just want to help a little to keep it clean :). Thanks a lot again guys, for otherwise excellent job. On Jul 5, 10:33 am, doc_brown <vm_...@...> wrote: > Hello, everybody > > I think there is a serious bug such as precedence violation. > > When I run the code > > x= 1.0 > print 2.718281828**(- x**2) > > on Boo, I get 2.718281828. It looks like not only x, but -x is taken > to the power of 2. > > On both CPython and IronPython the same code gives me correct result > 0.367879441234. > > I run Boo 0.8.2 0n .Net 3.5 > > Thank you very much for your attention. You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by Rodrigo B. de Oliveira
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On Mon, Jul 7, 2008 at 12:58 PM, doc_brown <vm_tch@...> wrote: > > Could anyone just tell me how can I report a bug? > http://boo.codehaus.org/Contributors See "If you find a bug or problem" section. > Boo is a greatest language I ever worked with and I just want to help > a little to keep it clean :). > Your support is appreciated! Thanks! Rodrigo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by doc_brown
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Thank you, Rodrigo, for quick reply. And special thanks for Boo! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by Justin Chase-2
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you probably realized this but just in case, the following will work as you expect:
x= 1.0 print 2.718281828**(- (x**2)) On Sat, Jul 5, 2008 at 9:33 AM, doc_brown <vm_tch@...> wrote:
-- Justin Chase http://www.justnbusiness.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by doc_brown
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Yes, this what I finally did, it was no problem for me to make the program work ( -Math.Pow(x**2)) is also a solution) , but don't you disagree that this simple language feature should work the same as in other languages (and the issue should be reported :)) ? But, anyway, thanks a lot for your time! On Jul 7, 2:40 pm, "Justin Chase" <justin.m.ch...@...> wrote: > you probably realized this but just in case, the following will work as you > expect: > > x= 1.0 > print 2.718281828**(- (x**2)) > > > > On Sat, Jul 5, 2008 at 9:33 AM, doc_brown <vm_...@...> wrote: > > > Hello, everybody > > > I think there is a serious bug such as precedence violation. > > > When I run the code > > > x= 1.0 > > print 2.718281828**(- x**2) > > > on Boo, I get 2.718281828. It looks like not only x, but -x is taken > > to the power of 2. > > > On both CPython and IronPython the same code gives me correct result > > 0.367879441234. > > > I run Boo 0.8.2 0n .Net 3.5 > > > Thank you very much for your attention. > > -- > Justin Chasehttp://www.justnbusiness.com You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by doc_brown
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Sorry, I mean ( -Math.Pow(x, 2)) Better not to mix styles :))) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by Justin Chase-2
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Yes I also would expect the precedence for the power operator to be higher than the minus as you have indicated, I just wanted to make sure you had an acceptable workaround for now.
On Mon, Jul 7, 2008 at 3:55 PM, doc_brown <vm_tch@...> wrote:
-- Justin Chase http://www.justnbusiness.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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Re: precedence violation
by doc_brown
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Thanks so much, Justin, I understand and appreciate that. Victor --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Boo Programming Language" group. To post to this group, send email to boolang@... To unsubscribe from this group, send email to boolang-unsubscribe@... For more options, visit this group at http://groups.google.com/group/boolang -~----------~----~----~----~------~----~------~--~--- |
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