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NEXTAFTER(3) FreeBSD Library Functions Manual NEXTAFTER(3)
NAME
nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl -
next representable value
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
nextafter(double x, double y);
float
nextafterf(float x, float y);
long double
nextafterl(long double x, long double y);
double
nexttoward(double x, long double y);
float
nexttowardf(float x, long double y);
long double
nexttowardl(long double x, long double y);
DESCRIPTION
These functions return the next machine representable number from x in
direction y.
SEE ALSO
ieee(3), math(3)
STANDARDS
The nextafter(), nextafterf(), nextafterl(), nexttoward(), nexttowardf(),
and nexttowardl() routines conform to ISO/IEC 9899:1999 ("ISO C99").
They implement the Nextafter function recommended by IEEE Std 754-1985,
with the extension that nextafter(+0.0, -0.0) returns -0.0, and
nextafter(-0.0, +0.0) returns +0.0.
HISTORY
The nextafter() function appeared in 4.3BSD, and nextafterf() appeared in
FreeBSD 2.0.
FreeBSD 14.0-RELEASE-p11 May 4, 2005 FreeBSD 14.0-RELEASE-p11