INCLUDE STRUCTURE
Basic form
INCLUDE STRUCTURE rec.
Effect
When you define a structure rec (with
DATA or
TYPES ), this statement copies the
components of the structured data type subRec to the structure
rec .
Since you can define nested data structures (i.e. structures with
sub-structures) starting from Release 3.0, you should use INCLUDE
STRUCTURE only if you want to introduce types in a program first and
nested structures in a later step.
A data definition
-
DATA: BEGIN OF rec.
INCLUDE STRUCTURE subRec.
DATA: END OF rec.
is equivalent to
-
DATA rec LIKE subRec.
You are recommended to use the second formulation.
Even if the structure rec to be defined contains additional
components, instead of
-
DATA: BEGIN OF rec,
...
INCLUDE STRUCTURE subRec.
DATA: ...
END OF rec.
you should use
-
DATA: BEGIN OF rec,
...
rec LIKE subRec,
...
END OF rec.
so that subRec can be referenced as a sub-structure of
rec .
Note
Although " INCLUDE STRUCTURE subRec. " breaks up the
sub-structure subRec into its components, the
alignment of subRec is retained.
This means that padding fields may be inserted before the first and/or
before the last component of subRec in rec .
Related
INCLUDE TYPE
Index
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