DragonFly On-Line Manual Pages

NEXTAFTER(3)	      DragonFly Library Functions Manual	  NEXTAFTER(3)

NAME
     nextafter, nextafterf, nextafterl, nexttoward, nexttowardf -- next repre-
     sentable 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);

DESCRIPTION
     These functions return the next machine representable number from x in
     direction y.

SEE ALSO
     math(3)

STANDARDS
     The nextafter(), nextafterf(), nextafterl(), nexttoward(), and
     nexttowardf() 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.  nextafterl() appeared in DragonFly 2.13.

DragonFly 3.5		       December 21, 2011		 DragonFly 3.5