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ABENREFERENCE_ASSIGNMENTS - REFERENCE ASSIGNMENTS

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Assigning References

This section discusses the assignments and special statements that set the references (pointers) contained in data references and field symbols.

• Setting Reference Variables

• Setting Field Symbols

When using field symbols and data references that contain references to data objects, the following should be noted:

• In a regular assignment between field symbols, as in an assignment of data objects, each field symbol is handled as a dereferenced pointer (value semantics).

• In a regular assignment between data references, as in an upcast or downcast, the references are copied (reference semantics). The corresponding rules can be found in the assignment rules for reference variables.

Use field symbols and data references in appropriate ways

Note

For the dynamic data objects (strings, internal tables) and boxed components that are also managed internally using references, value semantics apply. This means that the internal administration is not visible for the developers.

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