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lrintf(3)

NAME

     llrint, llrintf, lrint, lrintf -- convert to integer


LIBRARY

     Math Library (libm, -lm)


SYNOPSIS

     #include <math.h>

     long long
     llrint(double x);

     long long
     llrintf(float x);

     long
     lrint(double x);

     long
     lrintf(float x);


DESCRIPTION

     The lrint() function returns the integer nearest to its argument x
     according to the current rounding mode.  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,
     lrint() raises an inexact exception.  When the rounded result is repre-
     sentable as a long, the expression lrint(x) is equivalent to
     (long)rint(x) (although the former may be more efficient).

     The llrint(), llrintf(), and lrintf() functions differ from lrint() only
     in their input and output types.


SEE ALSO

     lround(3), math(3), rint(3), round(3)


STANDARDS

     The llrint(), llrintf(), lrint(), and lrintf() functions conform to
     ISO/IEC 9899:1999 (``ISO C99'').


HISTORY

     These routines first appeared in FreeBSD 5.4.

FreeBSD 5.4		       January 11, 2005 		   FreeBSD 5.4

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