freebsd man page for nexttowardf

NEXTAFTER(3)						   BSD 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.

BSD
								    May 4, 2005 							       BSD