RINT(3) 						   BSD Library Functions Manual 						   RINT(3)

NAME

     rint, lrint, llrint -- round to integral value

SYNOPSIS

     #include <math.h>

     double
     rint(double x);

     long double
     rintl(long double x);

     float
     rintf(float x);

     long int
     lrint(double x);

     long int
     lrintl(long double x);

     long int
     lrintf(float x);

     long long int
     llrint(double x);

     long long int
     llrintl(long double x);

     long long int
     llrintf(float x);

DESCRIPTION

     The rint() functions return the integral value nearest to x (according to the prevailing rounding mode) in floating-point format.

     The lrint() and llrint() functions return the integral value nearest to x (according to the prevailing rounding mode) in the return formats
     specified.  If the rounded value is outside the range of the return type, the numeric result is unspecified and the "invalid" floating-point
     exception is raised. A range error may occur if the magnitude of x is too large.

SPECIAL VALUES

     rint(+-0) returns +-0 for all rounding modes.

     rint(+-infinity) returns +-infinity for all rounding modes.

     All these functions raise the "inexact" floating-point exception if the result differs in value from the argument (except when they raise
     some other floating-point exception, such as "invalid").

NOTE

     The rinttol() function is deprecated.  Please use the C99 function lrint() instead.

SEE ALSO

     abs(3), fabs(3), ceil(3), floor(3), math(3)

STANDARDS

     The rint() , lrint() , and llrint() functions conform to ISO/IEC 9899:2011.

BSD
								   July 02, 2008							       BSD