File hdf5type.h

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#ifndef TEMPLAT_LATTICE_IO_HDF5_HELPERS_HDF5TYPE_H
#define TEMPLAT_LATTICE_IO_HDF5_HELPERS_HDF5TYPE_H

/* This file is part of TempLat, available at https://cosmolattice.github.io/templat .
   Copyright 2021-2026 The TempLat authors, see AUTHORS.md.
   Released under the MIT license, see LICENSE.md. */

// File info: Main contributor(s): Adrien Florio, Year: 2020

#ifdef HAVE_HDF5
#include <hdf5.h>

namespace TempLat
{
  namespace HDF5TypeConstant
  {
    static constexpr int FixedSizeStringLength = 256;
  }

  template <typename T> struct HDF5Type {
    void close() {}
  };

  template <> struct HDF5Type<double> {
    HDF5Type() { type = H5T_NATIVE_DOUBLE; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<float> {
    HDF5Type() { type = H5T_NATIVE_FLOAT; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<double *> {
    HDF5Type() { type = H5T_NATIVE_DOUBLE; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<float *> {
    HDF5Type() { type = H5T_NATIVE_FLOAT; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<int> {
    HDF5Type() { type = H5T_NATIVE_INT; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<int *> {
    HDF5Type() { type = H5T_NATIVE_INT; }
    void close() {}
    hid_t type;
  };

  template <> struct HDF5Type<const char *> {
    HDF5Type()
    {
      auto memtype = H5Tcopy(H5T_C_S1);
      H5Tset_size(memtype, HDF5TypeConstant::FixedSizeStringLength);
      type = memtype;
    }
    void close() { H5Tclose(type); }
    hid_t type;
  };

  template <> struct HDF5Type<char *> {
    HDF5Type()
    {
      auto memtype = H5Tcopy(H5T_C_S1);
      H5Tset_size(memtype, HDF5TypeConstant::FixedSizeStringLength);
      type = memtype;
    }
    void close() { H5Tclose(type); }
    hid_t type;
  };
  template <> struct HDF5Type<char[HDF5TypeConstant::FixedSizeStringLength]> {
    HDF5Type()
    {
      auto memtype = H5Tcopy(H5T_C_S1);
      H5Tset_size(memtype, HDF5TypeConstant::FixedSizeStringLength);
      type = memtype;
    }
    void close() { H5Tclose(type); }
    hid_t type;
  };
} // namespace TempLat

#endif

#endif