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-rw-r--r--sysdeps/generic/floor.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/sysdeps/generic/floor.c b/sysdeps/generic/floor.c
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--- a/sysdeps/generic/floor.c
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-/* snarfed from BSD common_source/floor.c:
- * Copyright (c) 1985 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.
- */
-
-#ifndef lint
-static char sccsid[] = "@(#)floor.c	5.7 (Berkeley) 10/9/90";
-#endif /* not lint */
-
-#include "mathimpl.h"
-
-vc(L, 4503599627370496.0E0 ,0000,5c00,0000,0000, 55, 1.0) /* 2**55 */
-
-ic(L, 4503599627370496.0E0, 52, 1.0)			  /* 2**52 */
-
-#ifdef vccast
-#define	L	vccast(L)
-#endif
-
-/*
- * floor(x) := the largest integer no larger than x;
- * ceil(x) := -floor(-x), for all real x.
- *
- * Note: Inexact will be signaled if x is not an integer, as is
- *	customary for IEEE 754.  No other signal can be emitted.
- */
-double
-floor(x)
-double x;
-{
-	double y;
-
-	if (
-#if !defined(vax)&&!defined(tahoe)
-		x != x ||	/* NaN */
-#endif	/* !defined(vax)&&!defined(tahoe) */
-		x >= L)		/* already an even integer */
-		return x;
-	else if (x < (double)0)
-		return -ceil(-x);
-	else {			/* now 0 <= x < L */
-		y = L+x;		/* destructive store must be forced */
-		y -= L;			/* an integer, and |x-y| < 1 */
-		return x < y ? y-(double)1 : y;
-	}
-}