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llrint.3m (2010 09)

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llrint(3M) llrint(3M)
NAME
llrint( ), llrintf( ), llrintl( ), llrintw( ), llrintq( ) - round to nearest long long functions
SYNOPSIS
#include <math.h>
long long llrint(double x);
HP Integrity Server Only
long long llrintf(float x);
long long llrintl(long double x);
long long llrintw(extended x);
long long llrintq(quad x);
DESCRIPTION
llrint() rounds its argument to the nearest integral value, rounding according to the current round-
ing direction.
llrint() is equivalent to lrint(), except that it rounds to
long long instead of long int.
Integrity Server Only
llrintf() is a float version of llrint(); it takes a float argument.
llrintl() is a long double version of llrint(); it takes a long double argument.
llrintw() is an extended version of llrint(); it takes an extended argument.
llrintq() is equivalent to llrintl() on HP-UX systems.
USAGE
To use these functions, compile either with the default
-Ae option or with the -Aa
and
-D_HPUX_SOURCE options.
To use (for Integrity servers)
llrintw() or llrintq(), compile also with the -fpwidetypes
option.
Make sure your program includes
<math.h>. Link in the math library by specifying -lm
on the com-
piler or linker command line.
For more information, see the HP-UX floating-point guide for HP Integrity servers at the following site:
http://www.hp.com/go/fp
.
RETURN VALUE
If the rounded value is outside the range of
long long, the numeric result is the maximum or
minimum long long value and the invalid floating-point exception is raised. On Integrity servers, if
the rounded value is outside the range of long long, the numeric result is the minimum long long
value.
When
llrint() raises no other floating-point exception and the result differs from the argument, the
function raises the inexact floating-point exception.
ERRORS
No errors are defined.
SEE ALSO
ceil(3M), floor(3M), fabs(3M), fmod(3M), fegetround(3M), fesetround(3M), llround(3M), lrint(3M),
lround(3M), rint(3M), round(3M), trunc(3M), math(5), fenv(5).
STANDARDS CONFORMANCE
llrint(), llrintf(), llrintl() : ISO/IEC C99 (including Annex F, ‘‘IEC 60559 floating-point
arithmetic’’)
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

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