Hi,
We just ported some of our code using Eigen, and run into a bad_alloc problem.

The code is developed on an old platform using Eigen 3.0.1 and gcc 4.4.3 (Ubuntu 10.04 LTS).
In this context the following snippet:

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#include <iostream>
#include <eigen3/Eigen/Dense>

using Eigen::MatrixXd;
int main()
{

  MatrixXd u;
  u.resize(5,1);
}


generates

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ElectricFence Aborting: address not from malloc()


when compiled with:

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g++ -lefence -g -o teste  test.cpp


This does not happen on Ubuntu 12.04 LTS with Eigen 3.0.5 and gcc 4.6.3, using the same code and the same compiling command.

Does it come from the Eigen version, the compiler or the OS ?

I would deeply appreciate any hint on this problem.

Best Regards,
Olivier Stasse.

gcc 4.8.1 fixed the pb.