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ABENCORRESPONDING_MAPPING_ABEXA - CORRESPONDING MAPPING ABEXA

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Component Operator, Mapping Rule

This example demonstrates the component operator with explicit mapping rules.

Source Code

Execute

Description

The example assigns the basic form of the result of a constructor expression with the component operator CORRESPONDING with the parameter struct1 to a compatible structure struct2. Various mapping rules are demonstrated.

• If no mapping rule is used, the identically named components a1 and a2 are assigned and the other components remain initial.

• The mapping rule MAPPING b4 = a3 also assigns the component a3 to the component b4.

• The mapping rule MAPPING b4 = a1 assigns the component a1 twice, to b4 and to the identically named component a1.

• The mapping rule EXCEPT a1 assigns only the component a2 to the identically named component, since the component a1 is excluded.

• In addition to the identically named assignment, the mapping rule MAPPING b4 = a3 EXCEPT a1 assigns the component a3 to the component b4 and a1 is excluded from the identically named assignment.

• The mapping rule EXCEPT * does not assign any components and all components of the result remain initial.

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