Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
LROUND(3)	       FreeBSD Library Functions Manual		     LROUND(3)

NAME
     llround, llroundf,	lround,	lroundf	-- convert to nearest integral value

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     long long
     llround(double x);

     long long
     llroundf(float x);

     long
     lround(double x);

     long
     lroundf(float x);

DESCRIPTION
     The lround() function returns the integer nearest to its argument x,
     rounding away from	zero in	halfway	cases.	If the rounded result is too
     large to be represented as	a long value, an invalid exception is raised
     and the return value is undefined.	 Otherwise, if x is not	an integer,
     lround() may raise	an inexact exception.  When the	rounded	result is rep-
     resentable	as a long, the expression lround(x) is equivalent to
     (long)round(x) (although the former may be	more efficient).

     The llround(), llroundf(),	and lroundf() functions	differ from lround()
     only in their input and output types.

SEE ALSO
     lrint(3), math(3),	rint(3), round(3)

STANDARDS
     The llround(), llroundf(),	lround(), and lroundf()	functions conform to
     ISO/IEC 9899:1999 (``ISO C99'').

HISTORY
     These routines first appeared in FreeBSD 5.4.

FreeBSD	9.2		       January 11, 2005			   FreeBSD 9.2

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=lround&sektion=3&manpath=FreeBSD+5.4-RELEASE>

home | help