diff options
Diffstat (limited to 'lib/msun/man')
| -rw-r--r-- | lib/msun/man/rint.3 | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/lib/msun/man/rint.3 b/lib/msun/man/rint.3 index 3af9110..09f7e19 100644 --- a/lib/msun/man/rint.3 +++ b/lib/msun/man/rint.3 @@ -32,10 +32,12 @@ .\" from: @(#)rint.3 5.1 (Berkeley) 5/2/91 .\" $FreeBSD$ .\" -.Dd March 10, 1994 +.Dd July 5, 2004 .Dt RINT 3 .Os .Sh NAME +.Nm nearbyint , +.Nm nearbyintf , .Nm rint , .Nm rintf .Nd round to integral value in floating-point format @@ -44,6 +46,10 @@ .Sh SYNOPSIS .In math.h .Ft double +.Fn nearbyint "double x" +.Ft float +.Fn nearbyintf "float x" +.Ft double .Fn rint "double x" .Ft float .Fn rintf "float x" @@ -52,19 +58,44 @@ The .Fn rint and the .Fn rintf -functions return the integral value (represented as a double or float -precision number) nearest to +functions return the integral value nearest to .Fa x according to the prevailing rounding mode. +These functions raise an inexact exception when the original argument +is not an exact integer. +.Pp +The +.Fn nearbyint +and +.Fn nearbyintf +functions perform the same operation, except that they do not raise +an inexact exception. .Sh SEE ALSO .Xr abs 3 , .Xr ceil 3 , .Xr fabs 3 , +.Xr fenv 3 , .Xr floor 3 , .Xr ieee 3 , -.Xr math 3 +.Xr math 3 , +.Xr round 3 +.Sh STANDARDS +The +.Fn nearbyint , +.Fn nearbyintf , +.Fn rint , +and +.Fn rintf +functions conform to +.St -isoC-99 . .Sh HISTORY A .Fn rint function appeared in .At v6 . +The +.Fn nearbyint +and +.Fn nearbyintf +functions appeared in +.Fx 5.3 . |
