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Document nextafterl and nexttoward{,f,l}.

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David Schultz 2005-03-07 05:00:29 +00:00
parent 15a53f77fd
commit 6af2c5a60c
1 changed files with 21 additions and 7 deletions
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28
lib/msun/man/nextafter.3
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@ -32,12 +32,16 @@
.\" from: @(#)ieee.3 6.4 (Berkeley) 5/6/91
.\" $FreeBSD$
.\"
.Dd January 26, 2005
.Dd May 4, 2005
.Dt NEXTAFTER 3
.Os
.Sh NAME
.Nm nextafter ,
.Nm nextafterf
.Nm nextafterf ,
.Nm nextafterl ,
.Nm nexttoward ,
.Nm nexttowardf ,
.Nm nexttowardl
.Nd next representable value
.Sh LIBRARY
.Lb libm
@ -47,10 +51,16 @@
.Fn nextafter "double x" "double y"
.Ft float
.Fn nextafterf "float x" "float y"
.Ft long double
.Fn nextafterl "long double x" "long double y"
.Ft double
.Fn nexttoward "double x" "long double y"
.Ft float
.Fn nexttowardf "float x" "long double y"
.Ft long double
.Fn nexttowardl "long double x" "long double y"
.Sh DESCRIPTION
.Fn nextafter
and
.Fn nextafterf
These functions
return the next machine representable number from
.Fa x
in direction
@ -60,9 +70,13 @@ in direction
.Xr math 3
.Sh STANDARDS
The
.Fn nextafter
.Fn nextafter ,
.Fn nextafterf ,
.Fn nextafterl ,
.Fn nexttoward ,
.Fn nexttowardf ,
and
.Fn nextafterf
.Fn nexttowardl
routines conform to
.St -isoC-99 .
They implement the Nextafter function recommended by