diff options
Diffstat (limited to 'c++/src/H5DataType.h')
| -rw-r--r-- | c++/src/H5DataType.h | 169 |
1 files changed, 85 insertions, 84 deletions
diff --git a/c++/src/H5DataType.h b/c++/src/H5DataType.h index 159e3fc..8970a8d 100644 --- a/c++/src/H5DataType.h +++ b/c++/src/H5DataType.h @@ -6,17 +6,12 @@ * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * - * the files COPYING and Copyright.html. COPYING can be found at the root * - * of the source code distribution tree; Copyright.html can be found at the * - * root level of an installed copy of the electronic HDF5 document set and * - * is linked from the top-level documents page. It can also be found at * - * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * - * access to either file, you may request a copy from help@hdfgroup.org. * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ -// Class DataType inherits from H5Object and has several subclasses for -// specific HDF5 data types. - #ifndef __H5DataType_H #define __H5DataType_H @@ -29,118 +24,124 @@ namespace H5 { object and is a base class of ArrayType, AtomType, CompType, EnumType, and VarLenType. */ +// Inheritance: DataType -> H5Object -> H5Location -> IdComponent class H5_DLLCPP DataType : public H5Object { public: - // Creates a datatype given its class and size - DataType( const H5T_class_t type_class, size_t size ); + // Creates a datatype given its class and size + DataType(const H5T_class_t type_class, size_t size); - // Copy constructor: makes a copy of the original object - DataType( const DataType& original ); + // Copy constructor: makes a copy of the original object + DataType(const DataType& original); - // Creates a copy of a predefined type - DataType(const PredType& pred_type); + // Creates a copy of a predefined type + DataType(const PredType& pred_type); - // Creates a datatype by way of dereference. - DataType(const H5Location& loc, const void* ref, H5R_type_t ref_type = H5R_OBJECT); - DataType(const Attribute& attr, const void* ref, H5R_type_t ref_type = H5R_OBJECT); + // Creates a datatype by way of dereference. + DataType(const H5Location& loc, const void* ref, H5R_type_t ref_type = H5R_OBJECT); + DataType(const Attribute& attr, const void* ref, H5R_type_t ref_type = H5R_OBJECT); - // Closes this datatype. - virtual void close(); + // Closes this datatype. + virtual void close(); - // Copies an existing datatype to this datatype object. - void copy(const DataType& like_type); + // Copies an existing datatype to this datatype object. + void copy(const DataType& like_type); - // Copies the datatype of dset to this datatype object. - void copy(const DataSet& dset); + // Copies the datatype of dset to this datatype object. + void copy(const DataSet& dset); - // Returns the datatype class identifier. - H5T_class_t getClass() const; + // Returns the datatype class identifier. + H5T_class_t getClass() const; - // Commits a transient datatype to a file; this datatype becomes - // a named datatype which can be accessed from the location. - void commit(const H5Location& loc, const char* name); - void commit(const H5Location& loc, const H5std_string& name); - // These two overloaded functions are kept for backward compatibility - // only; they missed the const - removed from 1.8.18 and 1.10.1 - //void commit(H5Location& loc, const char* name); - //void commit(H5Location& loc, const H5std_string& name); + // Commits a transient datatype to a file; this datatype becomes + // a named datatype which can be accessed from the location. + void commit(const H5Location& loc, const char* name); + void commit(const H5Location& loc, const H5std_string& name); + // These two overloaded functions are kept for backward compatibility + // only; they missed the const - removed from 1.8.18 and 1.10.1 + //void commit(H5Location& loc, const char* name); + //void commit(H5Location& loc, const H5std_string& name); - // Determines whether this datatype is a named datatype or - // a transient datatype. - bool committed() const; + // Determines whether this datatype is a named datatype or + // a transient datatype. + bool committed() const; // Finds a conversion function that can handle the conversion // this datatype to the given datatype, dest. - H5T_conv_t find( const DataType& dest, H5T_cdata_t **pcdata ) const; + H5T_conv_t find(const DataType& dest, H5T_cdata_t **pcdata) const; + + // Converts data from between specified datatypes. + void convert(const DataType& dest, size_t nelmts, void *buf, void *background, const PropList& plist=PropList::DEFAULT) const; - // Converts data from between specified datatypes. - void convert( const DataType& dest, size_t nelmts, void *buf, void *background, const PropList& plist=PropList::DEFAULT) const; + // Assignment operator + DataType& operator=(const DataType& rhs); - // Assignment operator - DataType& operator=( const DataType& rhs ); + // Determines whether two datatypes are the same. + bool operator==(const DataType& compared_type) const; - // Determines whether two datatypes are the same. - bool operator==(const DataType& compared_type ) const; + // Locks a datatype. + void lock() const; - // Locks a datatype. - void lock() const; + // Returns the size of a datatype. + size_t getSize() const; - // Returns the size of a datatype. - size_t getSize() const; + // Returns the base datatype from which a datatype is derived. + // Note: not quite right for specific types yet??? + DataType getSuper() const; - // Returns the base datatype from which a datatype is derived. - // Note: not quite right for specific types yet??? - DataType getSuper() const; + // Registers a conversion function. + void registerFunc(H5T_pers_t pers, const char* name, const DataType& dest, H5T_conv_t func) const; + void registerFunc(H5T_pers_t pers, const H5std_string& name, const DataType& dest, H5T_conv_t func) const; - // Registers a conversion function. - void registerFunc(H5T_pers_t pers, const char* name, const DataType& dest, H5T_conv_t func ) const; - void registerFunc(H5T_pers_t pers, const H5std_string& name, const DataType& dest, H5T_conv_t func ) const; + // Removes a conversion function from all conversion paths. + void unregister(H5T_pers_t pers, const char* name, const DataType& dest, H5T_conv_t func) const; + void unregister(H5T_pers_t pers, const H5std_string& name, const DataType& dest, H5T_conv_t func) const; - // Removes a conversion function from all conversion paths. - void unregister( H5T_pers_t pers, const char* name, const DataType& dest, H5T_conv_t func ) const; - void unregister( H5T_pers_t pers, const H5std_string& name, const DataType& dest, H5T_conv_t func ) const; + // Tags an opaque datatype. + void setTag(const char* tag) const; + void setTag(const H5std_string& tag) const; - // Tags an opaque datatype. - void setTag( const char* tag ) const; - void setTag( const H5std_string& tag ) const; + // Gets the tag associated with an opaque datatype. + H5std_string getTag() const; - // Gets the tag associated with an opaque datatype. - H5std_string getTag() const; + // Checks whether this datatype contains (or is) a certain type class. + bool detectClass(H5T_class_t cls) const; - // Checks whether this datatype contains (or is) a certain type class. - bool detectClass(H5T_class_t cls) const; + // Checks whether this datatype is a variable-length string. + bool isVariableStr() const; - // Checks whether this datatype is a variable-length string. - bool isVariableStr() const; + // Returns a copy of the creation property list of a datatype. + PropList getCreatePlist() const; - ///\brief Returns this class name. - virtual H5std_string fromClass () const { return("DataType"); } + ///\brief Returns this class name. + virtual H5std_string fromClass () const { return("DataType"); } - // Creates a copy of an existing DataType using its id - DataType( const hid_t type_id ); + // Creates a copy of an existing DataType using its id + DataType(const hid_t type_id); - // Default constructor - DataType(); + // Default constructor + DataType(); - // Gets the datatype id. - virtual hid_t getId() const; + // Gets the datatype id. + virtual hid_t getId() const; - // Destructor: properly terminates access to this datatype. - virtual ~DataType(); + // Destructor: properly terminates access to this datatype. + virtual ~DataType(); protected: #ifndef DOXYGEN_SHOULD_SKIP_THIS - hid_t id; // HDF5 datatype id + hid_t id; // HDF5 datatype id - // Sets the datatype id. - virtual void p_setId(const hid_t new_id); + // Sets the datatype id. + virtual void p_setId(const hid_t new_id); #endif // DOXYGEN_SHOULD_SKIP_THIS private: - // Friend function to set DataType id. For library use only. - friend void f_DataType_setId(DataType* dtype, hid_t new_id); + // Friend function to set DataType id. For library use only. + friend void f_DataType_setId(DataType* dtype, hid_t new_id); + + void p_commit(hid_t loc_id, const char* name); + +}; // end of DataType +} // namespace H5 - void p_commit(hid_t loc_id, const char* name); -}; -} #endif // __H5DataType_H |