h5data_proxy< std::string > Struct Template Reference

Specialization for std::string. More...

Collaboration diagram for h5data_proxy< std::string >:

Public Types
using	data_type = std::string

Public Member Functions
	h5data_proxy (const data_type &a)
bool	read (data_type &ref, hid_t grp, const std::string &aname, hid_t xfer_plist=H5P_DEFAULT)
bool	write (const data_type &ref, hid_t grp, const std::string &aname, hid_t xfer_plist=H5P_DEFAULT) const

Detailed Description

template<>
struct qmcplusplus::h5data_proxy< std::string >

Specialization for std::string.

Definition at line 136 of file hdf_stl.h.

Member Typedef Documentation

data_type

using data_type = std::string

Definition at line 138 of file hdf_stl.h.

Constructor & Destructor Documentation

h5data_proxy()

h5data_proxy ( const data_type &  a )

inline

Definition at line 140 of file hdf_stl.h.

{}

Member Function Documentation

read()

bool read ( data_type &  ref, hid_t  grp, const std::string &  aname, hid_t  xfer_plist = H5P_DEFAULT  )

inline

Definition at line 142 of file hdf_stl.h.

  {
    hid_t dataset = H5Dopen(grp, aname.c_str(), H5P_DEFAULT);
    if (dataset > -1)
    {
      hid_t datatype = H5Dget_type(dataset);
      hsize_t dim_out;
      if (datatype == H5T_NATIVE_CHAR)
      {
        hid_t dataspace = H5Dget_space(dataset);
        hid_t status    = H5Sget_simple_extent_dims(dataspace, &dim_out, NULL);
        H5Sclose(dataspace);
      }
      else
      {
        dim_out = H5Tget_size(datatype);
      }
      ref.resize(dim_out);
      herr_t ret = H5Dread(dataset, datatype, H5S_ALL, H5S_ALL, xfer_plist, &(ref[0]));
      H5Tclose(datatype);
      H5Dclose(dataset);
      return ret != -1;
    }
    return false;
  }

write()

bool write ( const data_type &  ref, hid_t  grp, const std::string &  aname, hid_t  xfer_plist = H5P_DEFAULT  ) const

inline

Definition at line 168 of file hdf_stl.h.

  {
    hid_t str80 = H5Tcopy(H5T_C_S1);
    H5Tset_size(str80, ref.size());
    hsize_t dim = 1;

    herr_t ret = -1;
    hid_t h1   = H5Dopen(grp, aname.c_str(), H5P_DEFAULT);
    if (h1 < 0) // missing create one
    {
      hid_t dataspace = H5Screate_simple(1, &dim, NULL);
      hid_t dataset   = H5Dcreate(grp, aname.c_str(), str80, dataspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
      ret             = H5Dwrite(dataset, str80, H5S_ALL, H5S_ALL, xfer_plist, ref.data());
      H5Sclose(dataspace);
      H5Dclose(dataset);
    }
    else
    {
      ret = H5Dwrite(h1, str80, H5S_ALL, H5S_ALL, xfer_plist, ref.data());
    }
    H5Dclose(h1);
    return ret != -1;
  }

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The documentation for this struct was generated from the following file:

• /home/pk7/projects/qmc/for_cron_doxygen/qmcpack/src/io/hdf/hdf_stl.h