The Information Catalog Manager input structures and output structures contain three parts, called areas, as shown in Figure 5:
Figure 5. An input or output structure
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The entire self-defining structure must be a contiguous area of storage.
Input structures and output structures contain only character data, and cannot contain null characters.
If you omit a value in an input or output structure, use an appropriate number of space characters, called blanks in this book, in place of the value to keep the byte offsets of the values consistent with the definition of the input structure and output structure.