nearbyint(3C)

NAME
     nearbyint, nearbyintf, nearbyintl - the nearbyint functions (libc
     routines)

SYNOPSIS
     #include <math.h>

     double nearbyint(double x);

     float nearbyintf(float x);

     long double nearbyintl(long double x);

DESCRIPTION
     These routines are not available for programs compiled with the O32 ABI.

     Note that the long double routine is only valid for the MIPSpro
     compilers.

     The nearbyint functions round their argument to an integer value in
     floating-point format, using the current rounding direction and without
     raising the "inexact" floating-point exception.

NOTES
     Long double operations on this system are only supported in round to
     nearest rounding mode (the default).  The system must be in round to
     nearest rounding mode when calling any of the long double functions, or
     incorrect answers will result.

RETURN VALUES
     nearbyint(_0.0) returns _0.0 (for all rounding directions).
     nearbyint(_infinity) returns _infinity (for all rounding directions).
     (nearbyintf and nearbyintl behave similarly.)

SEE ALSO
     cc(1), intro(3M).