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

implement tgamma().

1 files changed, 0 insertions, 219 deletions

diff --git a/lib/libm/common_source/pow.c b/lib/libm/common_source/pow.c
deleted file mode 100644
index 01bbf04..0000000
--- a/lib/libm/common_source/pow.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright (c) 1985, 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifndef lint
-static char sccsid[] = "@(#)pow.c	8.1 (Berkeley) 6/4/93";
-#endif /* not lint */
-
-/* POW(X,Y)
- * RETURN X**Y
- * DOUBLE PRECISION (VAX D format 56 bits, IEEE DOUBLE 53 BITS)
- * CODED IN C BY K.C. NG, 1/8/85;
- * REVISED BY K.C. NG on 7/10/85.
- * KERNEL pow_P() REPLACED BY P. McILROY 7/22/92.
- * Required system supported functions:
- *      scalb(x,n)
- *      logb(x)
- *	copysign(x,y)
- *	finite(x)
- *	drem(x,y)
- *
- * Required kernel functions:
- *	exp__D(a,c)			exp(a + c) for |a| << |c|
- *	struct d_double dlog(x)		r.a + r.b, |r.b| < |r.a|
- *
- * Method
- *	1. Compute and return log(x) in three pieces:
- *		log(x) = n*ln2 + hi + lo,
- *	   where n is an integer.
- *	2. Perform y*log(x) by simulating muti-precision arithmetic and
- *	   return the answer in three pieces:
- *		y*log(x) = m*ln2 + hi + lo,
- *	   where m is an integer.
- *	3. Return x**y = exp(y*log(x))
- *		= 2^m * ( exp(hi+lo) ).
- *
- * Special cases:
- *	(anything) ** 0  is 1 ;
- *	(anything) ** 1  is itself;
- *	(anything) ** NaN is NaN;
- *	NaN ** (anything except 0) is NaN;
- *	+(anything > 1) ** +INF is +INF;
- *	-(anything > 1) ** +INF is NaN;
- *	+-(anything > 1) ** -INF is +0;
- *	+-(anything < 1) ** +INF is +0;
- *	+(anything < 1) ** -INF is +INF;
- *	-(anything < 1) ** -INF is NaN;
- *	+-1 ** +-INF is NaN and signal INVALID;
- *	+0 ** +(anything except 0, NaN)  is +0;
- *	-0 ** +(anything except 0, NaN, odd integer)  is +0;
- *	+0 ** -(anything except 0, NaN)  is +INF and signal DIV-BY-ZERO;
- *	-0 ** -(anything except 0, NaN, odd integer)  is +INF with signal;
- *	-0 ** (odd integer) = -( +0 ** (odd integer) );
- *	+INF ** +(anything except 0,NaN) is +INF;
- *	+INF ** -(anything except 0,NaN) is +0;
- *	-INF ** (odd integer) = -( +INF ** (odd integer) );
- *	-INF ** (even integer) = ( +INF ** (even integer) );
- *	-INF ** -(anything except integer,NaN) is NaN with signal;
- *	-(x=anything) ** (k=integer) is (-1)**k * (x ** k);
- *	-(anything except 0) ** (non-integer) is NaN with signal;
- *
- * Accuracy:
- *	pow(x,y) returns x**y nearly rounded. In particular, on a SUN, a VAX,
- *	and a Zilog Z8000,
- *			pow(integer,integer)
- *	always returns the correct integer provided it is representable.
- *	In a test run with 100,000 random arguments with 0 < x, y < 20.0
- *	on a VAX, the maximum observed error was 1.79 ulps (units in the
- *	last place).
- *
- * Constants :
- * The hexadecimal values are the intended ones for the following constants.
- * The decimal values may be used, provided that the compiler will convert
- * from decimal to binary accurately enough to produce the hexadecimal values
- * shown.
- */
-
-#include <errno.h>
-#include <math.h>
-
-#include "mathimpl.h"
-
-#if (defined(vax) || defined(tahoe))
-#define TRUNC(x)	x = (double) (float) x
-#define _IEEE		0
-#else
-#define _IEEE		1
-#define endian		(((*(int *) &one)) ? 1 : 0)
-#define TRUNC(x) 	*(((int *) &x)+endian) &= 0xf8000000
-#define infnan(x)	0.0
-#endif		/* vax or tahoe */
-
-const static double zero=0.0, one=1.0, two=2.0, negone= -1.0;
-
-static double pow_P __P((double, double));
-
-double pow(x,y)
-double x,y;
-{
-	double t;
-	if (y==zero)
-		return (one);
-	else if (y==one || (_IEEE && x != x))
-		return (x);		/* if x is NaN or y=1 */
-	else if (_IEEE && y!=y)		/* if y is NaN */
-		return (y);
-	else if (!finite(y))		/* if y is INF */
-		if ((t=fabs(x))==one)	/* +-1 ** +-INF is NaN */
-			return (y - y);
-		else if (t>one)
-			return ((y<0)? zero : ((x<zero)? y-y : y));
-		else
-			return ((y>0)? zero : ((x<0)? y-y : -y));
-	else if (y==two)
-		return (x*x);
-	else if (y==negone)
-		return (one/x);
-    /* x > 0, x == +0 */
-	else if (copysign(one, x) == one)
-		return (pow_P(x, y));
-
-    /* sign(x)= -1 */
-	/* if y is an even integer */
-	else if ( (t=drem(y,two)) == zero)
-		return (pow_P(-x, y));
-
-	/* if y is an odd integer */
-	else if (copysign(t,one) == one)
-		return (-pow_P(-x, y));
-
-	/* Henceforth y is not an integer */
-	else if (x==zero)	/* x is -0 */
-		return ((y>zero)? -x : one/(-x));
-	else if (_IEEE)
-		return (zero/zero);
-	else
-		return (infnan(EDOM));
-}
-/* kernel function for x >= 0 */
-static double
-#ifdef _ANSI_SOURCE
-pow_P(double x, double y)
-#else
-pow_P(x, y) double x, y;
-#endif
-{
-	struct Double s, t, __log__D();
-	double  __exp__D();
-	volatile double huge = 1e300, tiny = 1e-300;
-
-	if (x == zero)
-		if (y > zero)
-			return (zero);
-		else if (_IEEE)
-			return (huge*huge);
-		else
-			return (infnan(ERANGE));
-	if (x == one)
-		return (one);
-	if (!finite(x))
-		if (y < zero)
-			return (zero);
-		else if (_IEEE)
-			return (huge*huge);
-		else
-			return (infnan(ERANGE));
-	if (y >= 7e18)		/* infinity */
-		if (x < 1)
-			return(tiny*tiny);
-		else if (_IEEE)
-			return (huge*huge);
-		else
-			return (infnan(ERANGE));
-
-	/* Return exp(y*log(x)), using simulated extended */
-	/* precision for the log and the multiply.	  */
-
-	s = __log__D(x);
-	t.a = y;
-	TRUNC(t.a);
-	t.b = y - t.a;
-	t.b = s.b*y + t.b*s.a;
-	t.a *= s.a;
-	s.a = t.a + t.b;
-	s.b = (t.a - s.a) + t.b;
-	return (__exp__D(s.a, s.b));
-}