CGAL users discussion list

[Ashwin Nanjappa <>]

Tuukka Kataja wrote:
> Hello,
> I'm experiencing weird precondition and assert failures when using CGAL 
> with the following system:
>
> 64-bit Ubuntu 6.10
> gcc 4.1.2
> CGAL 3.3.1
>
> As a minimal example, consider the attached code (minkowski.cpp). It 
> terminates with
>
> CGAL error: precondition violation!
> Expr: nodeP != NULL && nodeP->is_valid()
> File: /usr/local/include/CGAL/Multiset.h
> Line: 338
> terminate called after throwing an instance of 'std::logic_error'
>   what():  basic_string::_S_construct NULL not valid

I tried your program and see a similar error. I'm on 32-bit WinXP, VC++ 
2008 EE and CGAL 3.3.1.

~ash