The REXX comprehensive set of built-in functions is one of its main 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 as they do under standard REXX, except for the differences that are described in this chapter. For information about functions that are not discussed here, see the second edition of the Cowlishaw book. You can order the second edition of The REXX Language: A Practical Approach to Programming through Amazon.com.
Note: For more information about OPS/REXX, and how it differs from and extends standard REXX, see the chapter “Using OPS/REXX” in the User Guide.
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