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NetBSD 6.1.5 - man page for fdimf (netbsd section 3)

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FDIM(3) 			   BSD Library Functions Manual 			  FDIM(3)

NAME
     fdim, fdimf, fdiml -- positive difference functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     fdim(double x, double y);

     float
     fdimf(float x, float y);

     long double
     fdiml(long double x, long double y);

DESCRIPTION
     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 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(), fdimf(), and fdiml() functions conform to ISO/IEC 9899:1999 (``ISO C99'').

HISTORY
     These routines first appeared in FreeBSD 5.3 and NetBSD 5.1.

BSD					  June 29, 2004 				      BSD
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