llround(3M)

DESCRIPTION

llround() rounds its argument to the nearest integral value. An argument exactly halfway between two integers is rounded away from zero, regardless of the current rounding direction. Rounding away from zero also applies to the functions, round and lround.

llround() is equivalent to lround(), except that it rounds to long long instead of long int.

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) llroundw() or llroundq(), compile also with the -fpwidetypes option.

Make sure your program includes <math.h>. Link in the math library by specifying -lm on the compiler 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 llround() raises no other floating-point exception and the result differs from the argument, the function may raise the inexact floating-point exception.

ERRORS

No errors are defined.

SEE ALSO

ceil(3M), floor(3M), fabs(3M), fmod(3M), fegetround(3M), fesetround(3M), lrint(3M), llrint(3M), lround(3M), rint(3M), round(3M), trunc(3M), math(5), fenv(5).

STANDARDS CONFORMANCE

llround(), llroundf(), llroundl() : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')