z/OS TSO/E REXX User's Guide
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Comparison Functions

z/OS TSO/E REXX User's Guide
SA32-0982-00

Function Description
COMPARE Returns 0 if the two input strings are identical. Otherwise, returns the position of the first character that does not match.
DATATYPE Returns a string indicating the input string is a particular data type, such as a number or character.
SYMBOL Returns this state of the symbol (variable, literal, or bad).
Parent topic: Built-In Functions

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