#include <value.hpp>
Inheritance diagram for Exiv2::DataValue:


Public Types | |
| typedef std::auto_ptr< DataValue > | AutoPtr |
| Shortcut for a DataValue auto pointer. | |
Public Member Functions | |
Creators | |
| DataValue (TypeId typeId=undefined) | |
| Default constructor. | |
| DataValue (const byte *buf, long len, ByteOrder byteOrder=invalidByteOrder, TypeId typeId=undefined) | |
| Constructor. | |
| virtual | ~DataValue () |
| Virtual destructor. | |
Manipulators | |
| DataValue & | operator= (const DataValue &rhs) |
| Assignment operator. | |
| virtual void | read (const byte *buf, long len, ByteOrder byteOrder=invalidByteOrder) |
| Read the value from a character buffer. | |
| virtual void | read (const std::string &buf) |
| Set the data from a string of integer values (e.g., "0 1 2 3"). | |
Accessors | |
| AutoPtr | clone () const |
| Return an auto-pointer to a copy of itself (deep copy). The caller owns this copy and the auto-pointer ensures that it will be deleted. | |
| virtual long | copy (byte *buf, ByteOrder byteOrder=invalidByteOrder) const |
| Write value to a character data buffer. | |
| virtual long | count () const |
| Return the number of components of the value. | |
| virtual long | size () const |
| Return the size of the value in bytes. | |
| virtual std::ostream & | write (std::ostream &os) const |
| Write the value to an output stream. You do not usually have to use this function; it is used for the implementation of the output operator for Value, operator<<(std::ostream &os, const Value &value). | |
| virtual long | toLong (long n=0) const |
| Convert the n-th component of the value to a long. The behaviour of this method may be undefined if there is no n-th component. | |
| virtual float | toFloat (long n=0) const |
| Convert the n-th component of the value to a float. The behaviour of this method may be undefined if there is no n-th component. | |
| virtual Rational | toRational (long n=0) const |
| Convert the n-th component of the value to a Rational. The behaviour of this method may be undefined if there is no n-th component. | |
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Write value to a character data buffer.
Implements Exiv2::Value. |
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Read the value from a character buffer.
Implements Exiv2::Value.
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Convert the n-th component of the value to a float. The behaviour of this method may be undefined if there is no n-th component.
Implements Exiv2::Value. |
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Convert the n-th component of the value to a long. The behaviour of this method may be undefined if there is no n-th component.
Implements Exiv2::Value. |
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Convert the n-th component of the value to a Rational. The behaviour of this method may be undefined if there is no n-th component.
Implements Exiv2::Value. |
1.3.9.1