Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / lang / s_scalbn.c

diff --git a/libjava/java/lang/s_scalbn.c b/libjava/java/lang/s_scalbn.c
deleted file mode 100644 (file)
index 36ee889..0000000
--- a/libjava/java/lang/s_scalbn.c
+++ /dev/null
@@ -1,104 +0,0 @@
-
-/* @(#)s_scalbn.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
-<<scalbn>>, <<scalbnf>>---scale by integer
-INDEX
-       scalbn
-INDEX
-       scalbnf
-
-ANSI_SYNOPSIS
-       #include <math.h>
-       double scalbn(double <[x]>, int <[y]>);
-       float scalbnf(float <[x]>, int <[y]>);
-
-TRAD_SYNOPSIS
-       #include <math.h>
-       double scalbn(<[x]>,<[y]>)
-       double <[x]>;
-       int <[y]>;
-       float scalbnf(<[x]>,<[y]>)
-       float <[x]>;
-       int <[y]>;
-
-DESCRIPTION
-<<scalbn>> and <<scalbnf>> scale <[x]> by <[n]>, returning <[x]> times
-2 to the power <[n]>.  The result is computed by manipulating the
-exponent, rather than by actually performing an exponentiation or
-multiplication.
-
-RETURNS
-<[x]> times 2 to the power <[n]>.
-
-PORTABILITY
-Neither <<scalbn>> nor <<scalbnf>> is required by ANSI C or by the System V
-Interface Definition (Issue 2).
-
-*/
-
-/*
- * scalbn (double x, int n)
- * scalbn(x,n) returns x* 2**n  computed by  exponent
- * manipulation rather than by actually performing an
- * exponentiation or a multiplication.
- */
-
-#include "fdlibm.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
-static const double
-#else
-static double
-#endif
-two54   =  1.80143985094819840000e+16, /* 0x43500000, 0x00000000 */
-twom54  =  5.55111512312578270212e-17, /* 0x3C900000, 0x00000000 */
-huge   = 1.0e+300,
-tiny   = 1.0e-300;
-
-#ifdef __STDC__
-       double scalbn (double x, int n)
-#else
-       double scalbn (x,n)
-       double x; int n;
-#endif
-{
-       int32_t  k,hx,lx;
-       EXTRACT_WORDS(hx,lx,x);
-        k = (hx&0x7ff00000)>>20;               /* extract exponent */
-        if (k==0) {                            /* 0 or subnormal x */
-            if ((lx|(hx&0x7fffffff))==0) return x; /* +-0 */
-           x *= two54;
-           GET_HIGH_WORD(hx,x);
-           k = ((hx&0x7ff00000)>>20) - 54;
-            if (n< -50000) return tiny*x;      /*underflow*/
-           }
-        if (k==0x7ff) return x+x;              /* NaN or Inf */
-        k = k+n;
-        if (k >  0x7fe) return huge*copysign(huge,x); /* overflow  */
-        if (k > 0)                             /* normal result */
-           {SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20)); return x;}
-        if (k <= -54) {
-            if (n > 50000)     /* in case integer overflow in n+k */
-               return huge*copysign(huge,x);   /*overflow*/
-           else return tiny*copysign(tiny,x);  /*underflow*/
-       }
-        k += 54;                               /* subnormal result */
-       SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20));
-        return x*twom54;
-}
-
-#endif /* _DOUBLE_IS_32BITS */