nearbyint(3m) [opensolaris man page]

nearbyint(3M)						  Mathematical Library Functions					     nearbyint(3M)

NAME

       nearbyint, nearbyintf, nearbyintl - floating-point rounding functions

SYNOPSIS

       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       double nearbyint(double x);

       float nearbyintf(float x);

       long double nearbyintl(long double x);

DESCRIPTION

       These 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.

RETURN VALUES

       Upon successful completion, these functions return the rounded integer value.

       If x is NaN, a NaN is returned.

       If x is +-0, +-0 is returned.

       If x is +-Inf, x is returned.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       feclearexcept(3M), fetestexcept(3M), math.h(3HEAD), attributes(5), standards(5)

SunOS 5.11							    12 Jul 2006 						     nearbyint(3M)

rint(3M)						  Mathematical Library Functions						  rint(3M)

NAME

       rint, rintf, rintl - round-to-nearest integral value

SYNOPSIS

       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       double rint(double x);

       float rintf(float x);

       long double rintl(long double x);

DESCRIPTION

       These functions return the integral value (represented as a double) nearest x in the direction of the current rounding mode.

       If the current rounding mode rounds toward negative infinity, rint() is equivalent to floor(3M). If the current rounding mode rounds toward
       positive infinity, rint() is equivalent to ceil(3M).

       These functions differ from the nearbyint(3M), nearbyintf(), and nearbyintl() functions only in that they might raise the inexact floating-
       point exception if the result differs in value from the argument.

RETURN VALUES

       Upon successful completion, these functions return the integer (represented as a double precision number) nearest x in the direction of the
       current rounding mode.

       If x is NaN, a NaN is returned.

       If x is +-0 or +-Inf, x is returned.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       abs(3C), ceil(3M), feclearexcept(3M), fetestexcept(3M), floor(3M), isnan(3M), math.h(3HEAD), nearbyint(3M), attributes(5), standards(5)

SunOS 5.11							    12 Jul 2006 							  rint(3M)