The SYSTEM/INTERACTIVEXREF utility permits interactive access to detailed information about the identifiers declared in a program.
A cross-reference of a program contains an entry for each identifier declared in the program. This entry is referred to as the header line information. The header line contains the following information about the identifier:
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The alphabetic name
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The declared type of the identifier
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The program environment
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The stack location
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The sequence number of the declaration
