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The REXX comprehensive set of built-in functions is one of its significant attractions. OPS/REXX supports all standard REXX functions as defined by the second edition of The REXX Language: A Practical Approach to Programming by M.F. Cowlishaw, plus functions specifically added for CA OPS/MVS.
Built-in functions operate under OPS/REXX exactly as they do under standard REXX, except for the differences described in this chapter. For information about functions not discussed here, see the second edition of the Cowlishaw book, which you can order from Prentice-Hall.
For more information about the OPS/REXX language in general, and how it differs from and extends standard REXX, see the chapter “Using OPS/REXX” in the User Guide.
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