MirBSD manpage: fdim(3), fdimf(3)

FDIM(3)                    BSD Programmer's Manual                     FDIM(3)

NAME

     fdim, fdimf - positive difference functions

LIBRARY

     libm

SYNOPSIS

     #include <math.h>

     double
     fdim(double x, double y);

     float
     fdimf(float x, float y);

DESCRIPTION

     The fdim() and fdimf() 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 is +0.0.

     Overflow or underflow may occur iff the exact result is not representable
     in the return type. No other exceptions are raised.

SEE ALSO

     fabs(3), fmax(3), fmin(3), math(3)

STANDARDS

     The fdim() and fdimf() functions conform to ISO/IEC 9899:1999 ("ISO
     C99").

HISTORY

     These routines first appeared in FreeBSD 5.3 and NetBSD 5.1.

MirBSD #10-current             February 9, 2014                              1

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