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author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
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committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /StdLib/LibC/Math/s_floor.c | |
parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'StdLib/LibC/Math/s_floor.c')
-rw-r--r-- | StdLib/LibC/Math/s_floor.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/StdLib/LibC/Math/s_floor.c b/StdLib/LibC/Math/s_floor.c deleted file mode 100644 index d63ef13c0d..0000000000 --- a/StdLib/LibC/Math/s_floor.c +++ /dev/null @@ -1,74 +0,0 @@ -/* @(#)s_floor.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-#include <LibConfig.h>
-#include <sys/EfiCdefs.h>
-#if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$NetBSD: s_floor.c,v 1.11 2002/05/26 22:01:56 wiz Exp $");
-#endif
-
-/*
- * floor(x)
- * Return x rounded toward -inf to integral value
- * Method:
- * Bit twiddling.
- * Exception:
- * Inexact flag raised if x not equal to floor(x).
- */
-
-#include "math.h"
-#include "math_private.h"
-
-static const double huge = 1.0e300;
-
-double
-floor(double x)
-{
- int32_t i0,i1,j0;
- u_int32_t i,j;
- EXTRACT_WORDS(i0,i1,x);
- j0 = ((i0>>20)&0x7ff)-0x3ff;
- if(j0<20) {
- if(j0<0) { /* raise inexact if x != 0 */
- if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */
- if(i0>=0) {i0=i1=0;}
- else if(((i0&0x7fffffff)|i1)!=0)
- { i0=0xbff00000;i1=0;}
- }
- } else {
- i = (0x000fffff)>>j0;
- if(((i0&i)|i1)==0) return x; /* x is integral */
- if(huge+x>0.0) { /* raise inexact flag */
- if(i0<0) i0 += (0x00100000)>>j0;
- i0 &= (~i); i1=0;
- }
- }
- } else if (j0>51) {
- if(j0==0x400) return x+x; /* inf or NaN */
- else return x; /* x is integral */
- } else {
- i = ((u_int32_t)(0xffffffff))>>(j0-20);
- if((i1&i)==0) return x; /* x is integral */
- if(huge+x>0.0) { /* raise inexact flag */
- if(i0<0) {
- if(j0==20) i0+=1;
- else {
- j = i1+(1<<(52-j0));
- if((int32_t)j<i1) i0 +=1 ; /* got a carry */
- i1=j;
- }
- }
- i1 &= (~i);
- }
- }
- INSERT_WORDS(x,i0,i1);
- return x;
-}
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