dolfin team mailing list archive

[Patrick Riesen <priesen@xxxxxxxxxxxxxxx>]

-------- Original Message --------
Subject: [FEniCS-users] tensor constant function bug?
Date: Tue, 22 Sep 2009 16:10:09 +0200
From: Patrick Riesen <priesen@xxxxxxxxxxxxxxx>
To: fenics <fenics-users@xxxxxxxxxx>

hi,

i get a segfault/*address not mapped* when trying to create a tensor
constant function as follows:

     // create constant tensor function bcs
     shape.push_back(2); shape.push_back(2);

     values.push_back(0.0);
     values.push_back(0.0);
     values.push_back(0.0);
     values.push_back(0.0);

     _constraint = new Constant(shape, values);


a check with gdb reveals that in Constant.cpp for the function

Constant::Constant(const std::vector<uint>& shape,
                    const std::vector<double>& values)
   : Function(),
     _size(0), _values(0)
{

....


}

the variable _values is not mapped.

i guess the line

_values = new double[values.size()];

is missing before copying the values.

i'm running automatic augustin, but i check your doxygen doc on the web,
and it's seems to be also missing in your development version.

should i report this to dolfin launchpad somehow?

best,
patrick


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