// C++ informative line for the emacs editor: -*- C++ -*-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#ifndef H5FloatType_H
#define H5FloatType_H

namespace H5 {

/*! \class FloatType
    \brief FloatType is a derivative of a DataType and operates on HDF5
    floating point datatype.
*/
//  Inheritance: AtomType -> DataType -> H5Object -> H5Location -> IdComponent
class H5_DLLCPP FloatType : public AtomType {
  public:
    // Creates a floating-point type using a predefined type.
    FloatType(const PredType &pred_type);

    // Gets the floating-point datatype of the specified dataset.
    FloatType(const DataSet &dataset);

    // Constructors that open an HDF5 float datatype, given a location.
    FloatType(const H5Location &loc, const char *name);
    FloatType(const H5Location &loc, const H5std_string &name);

    // Returns an FloatType object via DataType* by decoding the
    // binary object description of this type.
    virtual DataType *decode() const override;

    // Retrieves the exponent bias of a floating-point type.
    size_t getEbias() const;

    // Sets the exponent bias of a floating-point type.
    void setEbias(size_t ebias) const;

    // Retrieves floating point datatype bit field information.
    void getFields(size_t &spos, size_t &epos, size_t &esize, size_t &mpos, size_t &msize) const;

    // Sets locations and sizes of floating point bit fields.
    void setFields(size_t spos, size_t epos, size_t esize, size_t mpos, size_t msize) const;

    // Retrieves the internal padding type for unused bits in floating-point datatypes.
    H5T_pad_t getInpad(H5std_string &pad_string) const;

    // Fills unused internal floating point bits.
    void setInpad(H5T_pad_t inpad) const;

    // Retrieves mantissa normalization of a floating-point datatype.
    H5T_norm_t getNorm(H5std_string &norm_string) const;

    // Sets the mantissa normalization of a floating-point datatype.
    void setNorm(H5T_norm_t norm) const;

    ///\brief Returns this class name.
    virtual H5std_string
    fromClass() const override
    {
        return ("FloatType");
    }

    // Default constructor
    FloatType();

    // Creates a floating-point datatype using an existing id.
    FloatType(const hid_t existing_id);

    // Copy constructor: same as the original FloatType.
    FloatType(const FloatType &original);

    // Noop destructor.
    virtual ~FloatType() override;

}; // end of FloatType
} // namespace H5

#endif // H5FloatType_H