Guardian Native C Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

powf(3) Guardian Native C Library Calls Reference Manual
• If the value of x is positive or negative 0.0 (zero) and the value of y is an odd integral
value greater than 0.0 (zero), positive or negative 0.0 (zero) is returned.
• If the value of x is positive or negative 0.0 (zero) and the value of y is not an odd integral
value but is greater than 0.0 (zero), positive 0.0 (zero) is returned.
ERRORS
If any of the following conditions occurs, the powf() function sets errno to the corresponding
value:
[EDOM] One of the following conditions exists:
• The value of x is negative and the value of y is nonintegral.
• The value of x is 0.0 (zero) and the value of y is negative.
[ERANGE] The value to be returned would have caused an underflow or an overflow.
RELATED INFORMATION
Functions: exp(3), fp_class(3), isnan(3), log(3), log10(3), pow(3), powl(3), sinh(3).
STANDARDS CONFORMANCE
This function conforms to the ISO/IEC 9899:1999 standard.
This function conforms to the IEEE Std 1003.1, 2004 Edition.
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