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Man Pages


Manual Reference Pages  -  RINT (3)

NAME

nearbyint, nearbyintf, nearbyintl, rint, rintf, rintl - round to integral value in floating-point format

CONTENTS

Library
Synopsis
Description
See Also
Standards
History

LIBRARY


.Lb libm

SYNOPSIS


.In math.h double nearbyint double x float nearbyintf float x long double nearbyintl long double x double rint double x float rintf float x long double rintl long double x

DESCRIPTION

The rint, rintf, and rintl functions return the integral value nearest to x according to the prevailing rounding mode. These functions raise an inexact exception when the original argument is not an exact integer.

The nearbyint, nearbyintf, and nearbyintl functions perform the same operation, except that they do not raise an inexact exception.

SEE ALSO

abs(3), ceil(3), fabs(3), fenv(3), floor(3), ieee(3), lrint(3), lround(3), math(3), round(3)

STANDARDS

These functions conform to -isoC-99.

HISTORY

A rint function appeared in AT&T v6 . The nearbyint and nearbyintf functions appeared in
.Fx 5.3 , and the long double variants were first available in
.Fx 8.0 .
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