xref: /freebsd/lib/msun/man/fabs.3 (revision 801517fd4ee48fc369d33961cce4059f37e762fc)

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.\"     from: @(#)fabs.3	5.1 (Berkeley) 5/2/91
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.Dd October 25, 2003
.Dt FABS 3
.Os
.Sh NAME
.Nm fabs ,
.Nm fabsf ,
.Nm fabsl
.Nd floating-point absolute value functions
.Sh LIBRARY
.Lb libm
.Sh SYNOPSIS
.In math.h
.Ft double
.Fn fabs "double x"
.Ft float
.Fn fabsf "float x"
.Ft long double
.Fn fabsl "long double x"
.Sh DESCRIPTION
The
.Fn fabs ,
the
.Fn fabsf
and the
.Fn fabsl
functions compute the absolute value of a floating-point number
.Fa x .
.Sh RETURN VALUES
The
.Fn fabs ,
the
.Fn fabsf
and the
.Fn fabsl
functions return the absolute value of
.Fa x .
.Sh SEE ALSO
.Xr abs 3 ,
.Xr ceil 3 ,
.Xr floor 3 ,
.Xr ieee 3 ,
.Xr math 3 ,
.Xr rint 3
.Sh STANDARDS
The
.Fn fabs
function conforms to
.St -isoC .
The
.Fn fabsf
and the
.Fn fabsl
functions conform to
.St -isoC-99 .