[project @ 1998-12-02 13:17:09 by simonm]

[ghc-hetmet.git] / ghc / runtime / gmp / mpz_com.c

diff --git a/ghc/runtime/gmp/mpz_com.c b/ghc/runtime/gmp/mpz_com.c
deleted file mode 100644 (file)
index 3c0d3b1..0000000
--- a/ghc/runtime/gmp/mpz_com.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* mpz_com(MP_INT *dst, MP_INT *src) -- Assign the bit-complemented value of
-   SRC to DST.
-
-Copyright (C) 1991 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 General Public License as published by
-the Free Software Foundation; either version 2, 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with the GNU MP Library; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-
-void
-#ifdef __STDC__
-mpz_com (MP_INT *dst, const MP_INT *src)
-#else
-mpz_com (dst, src)
-     MP_INT *dst;
-     const MP_INT *src;
-#endif
-{
-  mp_size size = src->size;
-  mp_srcptr src_ptr;
-  mp_ptr dst_ptr;
-
-  if (size >= 0)
-    {
-      /* As with infinite precision: one's complement, two's complement.
-        But this can be simplified using the identity -x = ~x + 1.
-        So we're going to compute (~~x) + 1 = x + 1!  */
-
-      if (dst->alloc < size + 1)
-       _mpz_realloc (dst, size + 1);
-
-      src_ptr = src->d;
-      dst_ptr = dst->d;
-
-      if (size == 0)
-       {
-         /* Special case, as mpn_add wants the first arg's size >= the
-            second arg's size.  */
-         dst_ptr[0] = 1;
-         dst->size = -1;
-         return;
-       }
-
-      {
-       mp_limb one = 1;
-       int cy;
-
-       cy = mpn_add (dst_ptr, src_ptr, size, &one, 1);
-       if (cy)
-         {
-           dst_ptr[size] = cy;
-           size++;
-         }
-      }
-
-      /* Store a negative size, to indicate ones-extension.  */
-      dst->size = -size;
-    }
-  else
-    {
-      /* As with infinite precision: two's complement, then one's complement.
-        But that can be simplified using the identity -x = ~(x - 1).
-        So we're going to compute ~~(x - 1) = x - 1!  */
-      size = -size;
-
-      if (dst->alloc < size)
-       _mpz_realloc (dst, size);
-
-      src_ptr = src->d;
-      dst_ptr = dst->d;
-
-      {
-       mp_limb one = 1;
-
-       size += mpn_sub (dst_ptr, src_ptr, size, &one, 1);
-      }
-
-      /* Store a positive size, to indicate zero-extension.  */
-      dst->size = size;
-    }
-}