From 7ce331c01ce6eb7b3f5c715a38a24359da9c6ee2 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 22 Nov 2001 14:04:29 +0000
Subject: Totally rework the math library, this time based on the MacOs X math
 library (which is itself based on the math lib from FreeBSD).  -Erik

---
 libm/double/lsqrt.c | 85 -----------------------------------------------------
 1 file changed, 85 deletions(-)
 delete mode 100644 libm/double/lsqrt.c

(limited to 'libm/double/lsqrt.c')

diff --git a/libm/double/lsqrt.c b/libm/double/lsqrt.c
deleted file mode 100644
index bf85a54f1..000000000
--- a/libm/double/lsqrt.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*							lsqrt.c
- *
- *	Integer square root
- *
- *
- *
- * SYNOPSIS:
- *
- * long x, y;
- * long lsqrt();
- *
- * y = lsqrt( x );
- *
- *
- *
- * DESCRIPTION:
- *
- * Returns a long integer square root of the long integer
- * argument.  The computation is by binary long division.
- *
- * The largest possible result is lsqrt(2,147,483,647)
- * = 46341.
- *
- * If x < 0, the square root of |x| is returned, and an
- * error message is printed.
- *
- *
- * ACCURACY:
- *
- * An extra, roundoff, bit is computed; hence the result
- * is the nearest integer to the actual square root.
- * NOTE: only DEC arithmetic is currently supported.
- *
- */
-
-/*
-Cephes Math Library Release 2.0:  April, 1987
-Copyright 1984, 1987 by Stephen L. Moshier
-Direct inquiries to 30 Frost Street, Cambridge, MA 02140
-*/
-
-#include <math.h>
-
-long lsqrt(x)
-long x;
-{
-long num, sq;
-long temp;
-int i, j, k, n;
-
-if( x < 0 )
-	{
-	mtherr( "lsqrt", DOMAIN );
-	x = -x;
-	}
-
-num = 0;
-sq = 0;
-k = 24;
-n = 4;
-
-for( j=0; j<4; j++ )
-	{
-	num |= (x >> k) & 0xff;	/* bring in next byte of arg */
-	if( j == 3 )		/* do roundoff bit at end */
-		n = 5;
-	for( i=0; i<n; i++ )
-		{
-		num <<= 2;		/* next 2 bits of arg */
-		sq <<= 1;		/* shift up answer */
-		temp = (sq << 1) + 256;	/* trial divisor */
-		temp = num - temp;
-		if( temp >= 0 )
-			{
-			num = temp;	/* it went in */
-			sq += 256;	/* answer bit = 1 */
-			}
-		}
-	k -= 8;	/* shift count to get next byte of arg */
-	}
-
-sq += 256;	/* add roundoff bit */
-sq >>= 9;	/* truncate */
-return( sq );
-}
-- 
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