FDIM(3) BSD Library Functions Manual FDIM(3)NAME
fdim, fdimf, fdiml — positive difference functions
Math Library (libm, -lm)
fdim(double x, double y);
fdimf(float x, float y);
fdiml(long double x, long double y);
The fdim(), fdimf(), and fdiml() functions return the positive difference
between x and y. That is, if x-y is positive, then x-y is returned. If
either x or y is an NaN, then an NaN is returned. Otherwise, the result
Overflow or underflow may occur iff the exact result is not representable
in the return type. No other exceptions are raised.
SEE ALSOfabs(3), fmax(3), fmin(3), math(3)STANDARDS
The fdim(), fdimf(), and fdiml() functions conform to ISO/IEC 9899:1999
These routines first appeared in FreeBSD 5.3.
BSD June 29, 2004 BSD