Mon Jul 22 02:39:56 1996 Torbjorn Granlund <tege@noisy.matematik.su.se>

        * extract-dbl.c: New name for extract-double.c.

1 files changed, 0 insertions, 160 deletions

diff --git a/extract-double.c b/extract-double.c
deleted file mode 100644
index 052b1a9c6..000000000
--- a/extract-double.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/* __gmp_extract_double -- convert from double to array of mp_limb_t.
-
-Copyright (C) 1996 Free Software Foundation, Inc.
-
-This file is part of the GNU MP Library.
-
-The GNU MP Library is free software; you can redistribute it and/or modify
-it under the terms of the GNU Library General Public License as published by
-the Free Software Foundation; either version 2 of the License, or (at your
-option) any later version.
-
-The GNU MP Library is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
-License for more details.
-
-You should have received a copy of the GNU Library General Public License
-along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-
-#ifdef XDEBUG
-#undef _GMP_IEEE_FLOATS
-#endif
-
-#ifndef _GMP_IEEE_FLOATS
-#define _GMP_IEEE_FLOATS 0
-#endif
-
-#define MP_BASE_AS_DOUBLE (2.0 * ((mp_limb_t) 1 << (BITS_PER_MP_LIMB - 1)))
-
-/* Extract a non-negative double in d.  */
-
-int
-#if __STDC__
-__gmp_extract_double (mp_ptr rp, double d)
-#else
-__gmp_extract_double (rp, d)
-     mp_ptr rp;
-     double d;
-#endif
-{
-  long exp;
-  unsigned sc;
-  mp_limb_t manh, manl;
-
-  /* BUGS
-
-     1. Should handle Inf and NaN in IEEE specific code.
-     2. Handle Inf and NaN also in default code, to avoid hangs.
-     3. Generalize to handle all BITS_PER_MP_LIMB >= 32.
-     4. This lits is incomplete and misspelled.
-   */
-
-  if (d == 0.0)
-    {
-      rp[0] = 0;
-      rp[1] = 0;
-#if BITS_PER_MP_LIMB == 32
-      rp[2] = 0;
-#endif
-      return 0;
-    }
-
-#if _GMP_IEEE_FLOATS
-  {
-    union ieee_double_extract x;
-    x.d = d;
-
-    exp = x.s.exp;
-    sc = (unsigned) (exp + 2) % BITS_PER_MP_LIMB;
-#if BITS_PER_MP_LIMB == 64
-    manl = (((mp_limb_t) 1 << 63)
-	    | ((mp_limb_t) x.s.manh << 43) | ((mp_limb_t) x.s.manl << 11));
-#else
-    manh = ((mp_limb_t) 1 << 31) | (x.s.manh << 11) | (x.s.manl >> 21);
-    manl = x.s.manl << 11;
-#endif
-  }
-#else
-  {
-    /* Unknown (or known to be non-IEEE) double format.  */
-    exp = 0;
-    if (d >= 1.0)
-      {
-	if (d * 0.5 == d)
-	  abort ();
-
-	while (d >= 32768.0)
-	  {
-	    d *= (1.0 / 65536.0);
-	    exp += 16;
-	  }
-	while (d >= 1.0)
-	  {
-	    d *= 0.5;
-	    exp += 1;
-	  }
-      }
-    else if (d < 0.5)
-      {
-	while (d < (1.0 / 65536.0))
-	  {
-	    d *=  65536.0;
-	    exp -= 16;
-	  }
-	while (d < 0.5)
-	  {
-	    d *= 2.0;
-	    exp -= 1;
-	  }
-      }
-
-    sc = (unsigned) exp % BITS_PER_MP_LIMB;
-
-    d *= MP_BASE_AS_DOUBLE;
-#if BITS_PER_MP_LIMB == 64
-    manl = d;
-#else
-    manh = d;
-    manl = (d - manh) * MP_BASE_AS_DOUBLE;
-#endif
-
-    exp += 1022;
-  }
-#endif
-
-  exp = (unsigned) (exp + 1) / BITS_PER_MP_LIMB - 1024 / BITS_PER_MP_LIMB + 1;
-
-#if BITS_PER_MP_LIMB == 64
-  if (sc != 0)
-    {
-      rp[1] = manl >> (BITS_PER_MP_LIMB - sc);
-      rp[0] = manl << sc;
-    }
-  else
-    {
-      rp[1] = manl;
-      rp[0] = 0;
-    }
-#else
-  if (sc != 0)
-    {
-      rp[2] = manh >> (BITS_PER_MP_LIMB - sc);
-      rp[1] = (manl >> (BITS_PER_MP_LIMB - sc)) | (manh << sc);
-      rp[0] = manl << sc;
-    }
-  else
-    {
-      rp[2] = manh;
-      rp[1] = manl;
-      rp[0] = 0;
-    }
-#endif
-
-  return exp;
-}