Re: [Lapackpp-devel] Bug?

[Jan K. <kor...@gm...>]

That's strange. If I got bad_alloc, I would understand but I didn't.
Matter of fact I can access most of the matrix members, even matrix (
25439, 25439 )...

Bad luck :-(

On Sat, Sep 18, 2010 at 7:10 PM, Dee <de...@de...> wrote:
> Hello,
>
> I get this result:
>
> terminate called after throwing an instance of 'std::bad_alloc'
>  what():  std::bad_alloc
> Aborted
>
> The problem is in
>
> #5  0x00007ffff75c721e in __cxa_throw () from /usr/lib/libstdc++.so.6
> #6  0x00007ffff75c76ad in operator new(unsigned long) () from
> /usr/lib/libstdc++.so.6
> #7  0x00007ffff75c7769 in operator new[](unsigned long) () from
> /usr/lib/libstdc++.so.6
> #8  0x00007ffff7bbfa19 in VectorDouble::VectorDouble(unsigned int) ()
> from /usr/lib/liblapackpp.so.14
> ---Type <return> to continue, or q <return> to quit---
> #9  0x00007ffff7ba3761 in LaGenMatDouble::LaGenMatDouble(int, int) ()
> from /usr/lib/liblapackpp.so.14
> #10 0x0000000000400a87 in main () at lap.cpp:9
>
> So I suppose the resulting vector of size 647193600 is too big for the
> stack (or heap).
>
> Greetings
> Dee
>
>
> -------- Original-Nachricht --------
> Betreff: [Lapackpp-devel] Bug?
> Von: Jan Korous <kor...@gm...>
> An: lap...@li...
> Datum: 18.09.2010 18:08
>
>> Hello,
>> I intended to use Lapack++ in my CFD project for diploma thesis. But I
>> found something stange. This simple code crashes, segfault...
>>
>> #include <stdio.h>
>> #include <lapackpp/gmd.h> // LaGenMatDouble
>>
>> using namespace std;
>> int main() {
>>       LaGenMatDouble matrix ( 25440, 25440 );
>>       cout << matrix(0, 8675);
>>       return 0;
>> }
>>
>> I don't know what's going on. I am using version 2.5.3 Are you able to
>> reproduce the bug or is it just me?
>>
>> Thank you for your answer.
>>
>> Sincerely
>> Jan Korous
>>
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>