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December 10, 2012 std.algorithm Map using a external variable | ||||
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I'm trying to use Map with a code like this : ... immutable int m = 10; int[] caca = [1,2,3,4]; auto caca2 = map!( (a) {return a * m;})(caca); writeln(caca2); ... I get a Segmentation fault some times: The most interesting point it's that depends of the code around of it ins the same program. for example If a use getopt at the begin of my program, then seg fault, etc... Looks that there some weird error in gdc 4.6.3 PD: Later I will put the whole code so any can see if I doing some weird thing that make map crazy |
December 10, 2012 Re: std.algorithm Map using a external variable | ||||
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Posted in reply to Zardoz | On 2012-12-10 19:21, Zardoz wrote: > I'm trying to use Map with a code like this : > > ... > immutable int m = 10; > int[] caca = [1,2,3,4]; > > auto caca2 = map!( (a) {return a * m;})(caca); > > writeln(caca2); > ... > > I get a Segmentation fault some times: > The most interesting point it's that depends of the code around of it > ins the same program. for example If a use getopt at the begin of my > program, then seg fault, etc... > Looks that there some weird error in gdc 4.6.3 > > PD: Later I will put the whole code so any can see if I doing some weird > thing that make map crazy std.getopt uses module variables, don't know if that has anything to do with it. -- /Jacob Carlborg |
December 10, 2012 Re: std.algorithm Map using a external variable | ||||
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Posted in reply to Zardoz | On Mon, Dec 10, 2012 at 07:21:47PM +0100, Zardoz wrote: > I'm trying to use Map with a code like this : > > ... > immutable int m = 10; > int[] caca = [1,2,3,4]; > > auto caca2 = map!( (a) {return a * m;})(caca); > > writeln(caca2); > ... > > I get a Segmentation fault some times: > The most interesting point it's that depends of the code around of > it ins the same program. for example If a use getopt at the begin > of my program, then seg fault, etc... [...] Do you have a compilable sample (possibly reduced from your full sources) that exhibits this error? It would help track down the problem. There are some known bugs related to map in older releases of D that may be affecting you. T -- Give me some fresh salted fish, please. |
December 10, 2012 Re: std.algorithm Map using a external variable | ||||
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Posted in reply to Zardoz | On Monday, 10 December 2012 at 18:21:48 UTC, Zardoz wrote: > I'm trying to use Map with a code like this : > > ... > immutable int m = 10; > int[] caca = [1,2,3,4]; > > auto caca2 = map!( (a) {return a * m;})(caca); > > writeln(caca2); > ... > > I get a Segmentation fault some times: > The most interesting point it's that depends of the code around of it ins the same program. for example If a use getopt at the begin of my program, then seg fault, etc... > Looks that there some weird error in gdc 4.6.3 > > PD: Later I will put the whole code so any can see if I doing some weird thing that make map crazy Looks like template lambda bug (http://d.puremagic.com/issues/show_bug.cgi?id=8899). It might depend not only on surrounding code, but on importing some phobos module (issue 8854). |
December 10, 2012 Re: std.algorithm Map using a external variable | ||||
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Posted in reply to H. S. Teoh | Well. I just try it again and I noticed this things : -Changind the lambda function from : auto caca2 = map!((a) {return a * iDeltaT;})(caca); to : auto caca2 = map!((a) {return a + iDeltaT;})(caca); Avoid the segmentation fault -Using dmd 2.60 avoid the segmentation fault. The source code is in http://dl.dropbox.com/u/2716434/CodeThatCrash.tgz The makefile only builds againts gdc, so to test it with dmd, I manually compiled the faulty code of serie2Sim.d with : dmd serie2Sim.d entity.d vector.d -ofserie2Sim And I launch it with ./serie2Sim --rand 10 --seed 123 With dmd works, but with gdc not. On Monday, 10 December 2012 at 18:59:31 UTC, H. S. Teoh wrote: > On Mon, Dec 10, 2012 at 07:21:47PM +0100, Zardoz wrote: >> I'm trying to use Map with a code like this : >> >> ... >> immutable int m = 10; >> int[] caca = [1,2,3,4]; >> >> auto caca2 = map!( (a) {return a * m;})(caca); >> >> writeln(caca2); >> ... >> >> I get a Segmentation fault some times: >> The most interesting point it's that depends of the code around of >> it ins the same program. for example If a use getopt at the begin >> of my program, then seg fault, etc... > [...] > > Do you have a compilable sample (possibly reduced from your full > sources) that exhibits this error? It would help track down the problem. > > There are some known bugs related to map in older releases of D that may > be affecting you. > > > T |
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