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Diffstat (limited to 'newlib/libm/common/s_nextafter.c')
-rw-r--r--newlib/libm/common/s_nextafter.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/newlib/libm/common/s_nextafter.c b/newlib/libm/common/s_nextafter.c
deleted file mode 100644
index 3a7fa3fec..000000000
--- a/newlib/libm/common/s_nextafter.c
+++ /dev/null
@@ -1,121 +0,0 @@
-
-/* @(#)s_nextafter.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.
- * ====================================================
- */
-
-/*
-FUNCTION
- <<nextafter>>, <<nextafterf>>---get next number
-
-INDEX
- nextafter
-INDEX
- nextafterf
-
-ANSI_SYNOPSIS
- #include <math.h>
- double nextafter(double <[val]>, double <[dir]>);
- float nextafterf(float <[val]>, float <[dir]>);
-
-TRAD_SYNOPSIS
- #include <math.h>
-
- double nextafter(<[val]>, <[dir]>)
- double <[val]>;
- double <[exp]>;
-
- float nextafter(<[val]>, <[dir]>)
- float <[val]>;
- float <[dir]>;
-
-
-DESCRIPTION
-<<nextafter>> returns the double-precision floating-point number
-closest to <[val]> in the direction toward <[dir]>. <<nextafterf>>
-performs the same operation in single precision. For example,
-<<nextafter(0.0,1.0)>> returns the smallest positive number which is
-representable in double precision.
-
-RETURNS
-Returns the next closest number to <[val]> in the direction toward
-<[dir]>.
-
-PORTABILITY
- Neither <<nextafter>> nor <<nextafterf>> is required by ANSI C
- or by the System V Interface Definition (Issue 2).
-*/
-
-/* IEEE functions
- * nextafter(x,y)
- * return the next machine floating-point number of x in the
- * direction toward y.
- * Special cases:
- */
-
-#include "fdlibm.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
- double nextafter(double x, double y)
-#else
- double nextafter(x,y)
- double x,y;
-#endif
-{
- __int32_t hx,hy,ix,iy;
- __uint32_t lx,ly;
-
- EXTRACT_WORDS(hx,lx,x);
- EXTRACT_WORDS(hy,ly,y);
- ix = hx&0x7fffffff; /* |x| */
- iy = hy&0x7fffffff; /* |y| */
-
- if(((ix>=0x7ff00000)&&((ix-0x7ff00000)|lx)!=0) || /* x is nan */
- ((iy>=0x7ff00000)&&((iy-0x7ff00000)|ly)!=0)) /* y is nan */
- return x+y;
- if(x==y) return x; /* x=y, return x */
- if((ix|lx)==0) { /* x == 0 */
- INSERT_WORDS(x,hy&0x80000000,1); /* return +-minsubnormal */
- y = x*x;
- if(y==x) return y; else return x; /* raise underflow flag */
- }
- if(hx>=0) { /* x > 0 */
- if(hx>hy||((hx==hy)&&(lx>ly))) { /* x > y, x -= ulp */
- if(lx==0) hx -= 1;
- lx -= 1;
- } else { /* x < y, x += ulp */
- lx += 1;
- if(lx==0) hx += 1;
- }
- } else { /* x < 0 */
- if(hy>=0||hx>hy||((hx==hy)&&(lx>ly))){/* x < y, x -= ulp */
- if(lx==0) hx -= 1;
- lx -= 1;
- } else { /* x > y, x += ulp */
- lx += 1;
- if(lx==0) hx += 1;
- }
- }
- hy = hx&0x7ff00000;
- if(hy>=0x7ff00000) return x+x; /* overflow */
- if(hy<0x00100000) { /* underflow */
- y = x*x;
- if(y!=x) { /* raise underflow flag */
- INSERT_WORDS(y,hx,lx);
- return y;
- }
- }
- INSERT_WORDS(x,hx,lx);
- return x;
-}
-
-#endif /* _DOUBLE_IS_32BITS */