Structures

SIC variables can also be structures, which are related ensembles of variables similar to the derived types in Fortran-90. The naming conventions follows the Fortran-90, with structure elements separated by the % sign.

A structure is defined by

    DEFINE STRUCTURE A

and any element then by

    DEFINE REAL A%B

Sub-structures can be defined, too

    DEFINE STRUCTURE A%C
    DEFINE REAL A%C%E

An entire structure (e.g. A as above) and all its element can be deleted using

    DELETE /VAR A

Structures can be assigned as a whole by command LET. This command will copy all elements of the same name, and leave the others untouched. HEADERs are actually special structures.