Removed all files in libm except README-FREEBSD and files needed to

implement tgamma().

1 files changed, 0 insertions, 177 deletions

diff --git a/lib/libm/common_source/infnan.3 b/lib/libm/common_source/infnan.3
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--- a/lib/libm/common_source/infnan.3
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-.\" Copyright (c) 1985, 1991, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)infnan.3	8.1 (Berkeley) 6/4/93
-.\" $FreeBSD$
-.\"
-.Dd June 4, 1993
-.Dt INFNAN 3
-.Os
-.Sh NAME
-.Nm infnan
-.Nd signals invalid floating\-point operations on a
-.Tn VAX
-(temporary)
-.Sh LIBRARY
-.Lb libm
-.Sh SYNOPSIS
-.In math.h
-.Ft double
-.Fn infnan "int iarg"
-.Sh DESCRIPTION
-At some time in the future, some of the useful properties of
-the Infinities and \*(Nas in the
-.Tn IEEE
-standard 754 for Binary
-Floating\-Point Arithmetic will be simulated in
-.Tn UNIX
-on the
-.Tn DEC VAX
-by using its Reserved Operands.  Meanwhile, the
-Invalid, Overflow and Divide\-by\-Zero exceptions of the
-.Tn IEEE
-standard are being approximated on a
-.Tn VAX
-by calls to a
-procedure
-.Fn infnan
-in appropriate places in
-.Xr libm 3 .
-When
-better exception\-handling is implemented in
-.Tn UNIX ,
-only
-.Fn infnan
-among the codes in
-.Xr libm
-will have to be changed.
-And users of
-.Xr libm
-can design their own
-.Fn infnan
-now to
-insulate themselves from future changes.
-.Pp
-Whenever an elementary function code in
-.Xr libm
-has to
-simulate one of the aforementioned
-.Tn IEEE
-exceptions, it calls
-.Fn infnan iarg
-with an appropriate value of
-.Fa iarg .
-Then a
-reserved operand fault stops computation.  But
-.Fn infnan
-could
-be replaced by a function with the same name that returns
-some plausible value, assigns an apt value to the global
-variable
-.Va errno ,
-and allows computation to resume.
-Alternatively, the Reserved Operand Fault Handler could be
-changed to respond by returning that plausible value, etc.\&
-instead of aborting.
-.Pp
-In the table below, the first two columns show various
-exceptions signaled by the
-.Tn IEEE
-standard, and the default
-result it prescribes.  The third column shows what value is
-given to
-.Fa iarg
-by functions in
-.Xr libm
-when they
-invoke
-.Fn infnan iarg
-under analogous circumstances on a
-.Tn VAX .
-Currently
-.Fn infnan
-stops computation under all those
-circumstances.  The last two columns offer an alternative;
-they suggest a setting for
-.Va errno
-and a value for a
-revised
-.Fn infnan
-to return.  And a C program to
-implement that suggestion follows.
-.Bl -column "IEEE Signal" "IEEE Default" XXERANGE ERANGEXXorXXEDOM
-.It "IEEE Signal	IEEE Default	" Fa iarg Ta Va errno Ta Fn infnan
-.It "Invalid	\*(Na	" Er "EDOM	EDOM	0"
-.It "Overflow	\(+-\*(If	" Er "ERANGE	ERANGE" Ta Dv HUGE
-.It "Div\-by\-0	\(+-Infinity	" Er "\(+-ERANGE	ERANGE or EDOM" Ta Dv \(+-HUGE
-.El
-.Bd -ragged -offset center -compact
-.Dv ( HUGE
-= 1.7e38 ... nearly 2.0**127)
-.Ed
-.Pp
-ALTERNATIVE
-.Fn infnan :
-.Bd -literal -offset indent
-#include	<math.h>
-#include	<errno.h>
-extern int	errno ;
-double	infnan(iarg)
-int	iarg ;
-{
-	switch(iarg) {
-	case	\0ERANGE:	errno = ERANGE; return(HUGE);
-	case	\-ERANGE:	errno = EDOM;	return(\-HUGE);
-	default:		errno = EDOM;	return(0);
-	}
-}
-.Ed
-.Sh SEE ALSO
-.Xr intro 2 ,
-.Xr math 3 ,
-.Xr signal 3
-.Pp
-.Er ERANGE
-and
-.Er EDOM
-are defined in
-.Aq Pa errno.h .
-(See
-.Xr intro 2
-for explanation of
-.Er EDOM
-and
-.Er ERANGE . )
-.Sh HISTORY
-The
-.Fn infnan
-function appeared in
-.Bx 4.3 .