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Man Pages


Manual Reference Pages  -  LROUNDL (3)

NAME

llround, llroundf, llroundl, lround, lroundf, lroundl - convert to nearest integral value

CONTENTS

Library
Synopsis
Description
See Also
Standards
History

LIBRARY


.Lb libm

SYNOPSIS


.In math.h long long llround double x long long llroundf float x long long llroundl long double x long lround double x long lroundf float x long lroundl long double 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
.Vt 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 representable as a
.Vt long , the expression lround x is equivalent to (Vt longround x) (although the former may be more efficient).

The llround, llroundf, llroundl, lroundf and lroundl 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, llroundl, lround, lroundf, and lroundl functions conform to -isoC-99.

HISTORY

The
.Vt float and
.Vt double versions of these routines first appeared in
.Fx 5.4 . The
.Vt long double versions appeared in
.Fx 6.0 .
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