get_dimensions.hpp

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#ifndef RITSUKO_HDF5_GET_DIMENSIONS_HPP
#define RITSUKO_HDF5_GET_DIMENSIONS_HPP
 
#include "H5Cpp.h"
#include <stdexcept>
 
namespace ritsuko {
 
namespace hdf5 {
 
inline std::vector<hsize_t> get_dimensions(const H5::DataSpace& space, bool allow_scalar) {
    int ndims = space.getSimpleExtentNdims();
    std::vector<hsize_t> dimensions(ndims);
    if (ndims != 0) {
        space.getSimpleExtentDims(dimensions.data());
    } else if (!allow_scalar) {
        throw std::runtime_error("expected an N-dimensional dataset, got a scalar instead");
    } 
    return dimensions;
}
 
inline std::vector<hsize_t> get_dimensions(const H5::DataSet& handle, bool allow_scalar) {
    return get_dimensions(handle.getSpace(), allow_scalar);
}
 
inline std::vector<hsize_t> get_dimensions(const H5::Attribute& handle, bool allow_scalar) {
    return get_dimensions(handle.getSpace(), allow_scalar);
}
 
 
}
 
}
 
#endif