Easy serialization of C++ Eigen matrices using HDF5.

The library is meant to be bare-bones (at least for now). It gets me 90% of what I want/need in a few hundred lines of code. It may also get you 90% (or even 100%) of what you need.

• Eigen3 (tested on 3.1 and 3.2 branches)
• HDF5 C++ wrapper library >= 1.8.12 (yes, this is a very recent version)

Because eigen3-hdf5 is a template library, there is nothing to link against (besides the HDF5 libraries).

Supports saving and restoring Eigen matrices and vectors of float, double, long double, int, unsigned int, and std::complex<>.

#include <eigen3-hdf5.hpp>

void save_matrix()
{
    Eigen::Matrix3d mat;
    mat << 1, 2, 3, 4, 5, 6, 7, 8, 9;
    H5::H5File file("filename1.h5", H5F_ACC_TRUNC);
    EigenHDF5::save(file, "MatrixDataSetName", mat);
}

void load_vector()
{
    Eigen::Vector4i vec;
    H5::H5File file("filename2.h5", H5F_ACC_RDONLY);
    EigenHDF5::load(file, "VectorDataSetName", vec);
}

See the unittests directory for more examples.

I am using premake4 and googletest because I am familiar with them.

The unit tests currently write to specific files in the current directory. This could change, eventually.

MIT license.

• Support more fundamental data types

• Using the HDF5 C++ wrapper library supposedly means it won't work with parallel hdf5. If I were to do it again, I would write eigen3-hdf5 using the regular C HDF5 API, not the C++ wrapper. Patches are welcome. :)