Rational Developer for System z
Enterprise PL/I for z/OS, Version 4.2, Language Reference

Floating-point manipulation built-in functions

The floating-point manipulation built-in functions perform mathematical operations on floating-point variables that you specify and return the result of the operation.

Table 53. Floating-point manipulation built-in functions
Function Description
EXPONENT Returns the exponent part of a floating point value
PRED Returns the next representable value before a floating-point value
SCALE Multiplies a floating-point number by an integral power of the radix
SUCC Returns the next representable value after a floating-point value

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