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nearbyintf(3)

NAME

     nearbyint, nearbyintf, rint, rintf -- round to integral value in float-
     ing-point format

LIBRARY

     Math Library (libm, -lm)

SYNOPSIS

     #include <math.h>

     double
     nearbyint(double x);

     float
     nearbyintf(float x);

     double
     rint(double x);

     float
     rintf(float x);

DESCRIPTION

     The rint() and the rintf() functions return the integral value nearest to
     x according to the prevailing rounding mode.  These functions raise an
     inexact exception when the original argument is not an exact integer.

     The nearbyint() and nearbyintf() functions perform the same operation,
     except that they do not raise an inexact exception.

SEE ALSO

     abs(3), ceil(3), fabs(3), fenv(3), floor(3), ieee(3), lrint(3),
     lround(3), math(3), round(3)

STANDARDS

     The nearbyint(), nearbyintf(), rint(), and rintf() functions conform to
     ISO/IEC 9899:1999 (``ISO C99'').

HISTORY

     A rint() function appeared in Version 6 AT&T UNIX.  The nearbyint() and
     nearbyintf() functions appeared in FreeBSD 5.3.

FreeBSD 5.4			 July 5, 2004			   FreeBSD 5.4

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