[eigen] Eigen::RandomSetter leads to assertion failure

[Moritz Lenz <mlenz@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

in trunk this piece of code (which I believed worked earlier, before 
Gael re-worked the sparse filling code) gives:

t: /home/mlenz/tmp/eigen2-git/Eigen/src/Sparse/SparseMatrix.h:193: void 
Eigen::SparseMatrix<_Scalar, _Flags>::startVec(int) [with _Scalar = int, 
int _Flags = 1]: Assertion `m_outerIndex[outer]==int(m_data.size()) && 
"you must call startVec on each inner vec"' failed.
Aborted


#include <iostream>
#include <complex>
#include <Eigen/Core>
#include <Eigen/Sparse>
#include <stdlib.h>
using namespace std;

using namespace Eigen;

typedef Eigen::SparseMatrix< int , Eigen::RowMajor> esm;
typedef Eigen::RandomSetter< esm > ers;

int main(int argc, char** argv) {
    srand(1);
    esm a(100, 100);
    {
        ers s(a);
        for (int x = 0; x < 100; x++) {
            for (int y = 0; y < 100; y++) {
                if (rand() < RAND_MAX / 2)
                    s(x, y) = 3;
            }
        }
    }
}
 // vim: ts=4 sw=4 expandtab


Cheers,
Moritz