HDF5 C++ API Reference Manual

 

 

 

H5CompType.h

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// Class CompType inherits from DataType and provides accesses to a compound
// datatype.

#ifndef _H5CompType_H
#define _H5CompType_H

#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif

class H5_DLLCPP CompType : public DataType {
   public:
        // Creates a new compound datatype, given the type's size
        CompType( size_t size ); // H5Tcreate

        // Gets the compound datatype of the specified dataset
        CompType( const DataSet& dataset );  // H5Dget_type

        // Returns the type class of the specified member of this compound
        // datatype.  It provides to the user a way of knowing what type
        // to create another datatype of the same class
        H5T_class_t getMemberClass( unsigned member_num ) const;

        // Returns the dimensionality of the specified member.
        int getMemberDims( unsigned member_num, size_t* dims, int* perm ) const; // obsolete

        // Returns the index of a member in this compound data type.
        int getMemberIndex(const char* name) const;
        int getMemberIndex(const string& name) const;

        // Returns the offset of a member of this compound datatype.
        size_t getMemberOffset( unsigned memb_no ) const;

        // Returns the name of a member of this compound datatype.
        string getMemberName( unsigned member_num ) const;

        // Returns the generic datatype of the specified member in
        // this compound datatype.
        DataType getMemberDataType( unsigned member_num ) const;

        // Returns the compound datatype of the specified member in
        // this compound datatype.
        ArrayType getMemberArrayType( unsigned member_num ) const;

        // Returns the compound datatype of the specified member in
        // this compound datatype.
        CompType getMemberCompType( unsigned member_num ) const;

        // Returns the enumeration datatype of the specified member in
        // this compound datatype.
        EnumType getMemberEnumType( unsigned member_num ) const;

        // Returns the integer datatype of the specified member in
        // this compound datatype.
        IntType getMemberIntType( unsigned member_num ) const;

        // Returns the floating-point datatype of the specified member in
        // this compound datatype.
        FloatType getMemberFloatType( unsigned member_num ) const;

        // Returns the string datatype of the specified member in
        // this compound datatype.
        StrType getMemberStrType( unsigned member_num ) const;

        // Returns the compound datatype of the specified member in
        // this compound datatype.
        VarLenType getMemberVarLenType( unsigned member_num ) const;

        // Returns the number of members in this compound datatype.
        int getNmembers() const;

        // Adds a new member to this compound datatype.
        void insertMember( const string& name, size_t offset, const DataType& new_member ) const;

        // Recursively removes padding from within this compound datatype.
        void pack() const;

        // Returns this class name
        virtual string fromClass () const { return("CompType"); }

        // Default constructor
        CompType();

        // Creates a compound datatype using an existing id
        CompType( const hid_t existing_id );

        // Copy constructor - makes a copy of original object
        CompType( const CompType& original );

        // Noop destructor.
        virtual ~CompType();

   private:
        // Contains common code that is used by the member functions
        // getMemberXxxType
        hid_t p_get_member_type(unsigned member_num) const;
};
#ifndef H5_NO_NAMESPACE
}
#endif
#endif

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