Guardian Native C Library Calls Reference Manual (G06.28+, H06.05+)

fmod(3) Guardian Native C Library Calls Reference Manual
RELATED INFORMATION
Functions: abs(3), ceil(3), fabs(3), floor(3), fp_class(3), isnan(3).
STANDARDS CONFORMANCE
This function conforms to the XPG4 Version 2 specification with extensions when used for IEEE
floating-point values. This function conforms to the XPG4 Version 2 specification without exten-
sions when used for Tandem floating-point values.
The XPG4 Version 2 specification leaves some features to the implementing vendor to define. In
the HP implementation, the following features are affected:
• For IEEE floating-point data, errno is not set to [EDOM] when the value of x is NaN.
• errno is not set to [ERANGE] when underflow occurs.
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