double
     nextafter(double x, double y);

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

     float
     nextafterf(float x, float y);

DESCRIPTION

     The nextafter() functions return the next machine representable number
     from x in direction y.

SPECIAL VALUES

     nextafter(x, y) raises the "overflow" and "inexact" floating-point excep-
     tions for x finite and the function value infinite.

     nextafter(x, y) raises the "underflow" and "inexact" floating-point
     exceptions for the function value subnormal or zero and x not equal to y.

SEE ALSO

     math(3)

STANDARDS

     The nextafter() functions conform to ISO/IEC 9899:1999(E).

BSD                            January 28, 2003                            BSD