Open System Services Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

OSS Library Calls (e - f) exp(3)
The XPG4 specification leaves some features to the implementing vendor to define. The follow-
ing features are affected in the HP implementation:
• For IEEE floating-point data, this function does not set errno to [EDOM] if the value of
x is NaN.
527187-017 Hewlett-Packard Company 2−29