fdim, fdimf, fdiml — positive difference
||long double x,|
|long double y
On success, these functions return the positive difference.
y is a NaN, a NaN is
If the result overflows, a range error occurs, and the
See math_error(7) for information on how to determine whether an error has occurred when calling these functions.
The following errors can occur:
An overflow floating-point exception (
FE_OVERFLOW) is raised.
These functions do not set
For an explanation of the terms used in this section, see attributes(7).
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Copyright 2003 Walter Harms, Andries Brouwer
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