===================================================================
RCS file: /home/cvs/OpenXM_contrib/gmp/mpz/Attic/tdiv_qr_ui.c,v
retrieving revision 1.1.1.2
retrieving revision 1.1.1.3
diff -u -p -r1.1.1.2 -r1.1.1.3
--- OpenXM_contrib/gmp/mpz/Attic/tdiv_qr_ui.c	2000/09/09 14:12:59	1.1.1.2
+++ OpenXM_contrib/gmp/mpz/Attic/tdiv_qr_ui.c	2003/08/25 16:06:34	1.1.1.3
@@ -2,7 +2,8 @@
    Set QUOT to DIVIDEND / SHORT_DIVISOR
    and REM to DIVIDEND mod SHORT_DIVISOR.
 
-Copyright (C) 1991, 1993, 1994, 1996, 1998 Free Software Foundation, Inc.
+Copyright 1991, 1993, 1994, 1996, 1998, 2001, 2002 Free Software Foundation,
+Inc.
 
 This file is part of the GNU MP Library.
 
@@ -25,52 +26,71 @@ MA 02111-1307, USA. */
 #include "gmp-impl.h"
 
 unsigned long int
-#if __STDC__
 mpz_tdiv_qr_ui (mpz_ptr quot, mpz_ptr rem, mpz_srcptr dividend, unsigned long int divisor)
-#else
-mpz_tdiv_qr_ui (quot, rem, dividend, divisor)
-     mpz_ptr quot;
-     mpz_ptr rem;
-     mpz_srcptr dividend;
-     unsigned long int divisor;
-#endif
 {
-  mp_size_t dividend_size;
-  mp_size_t size;
-  mp_ptr quot_ptr;
-  mp_limb_t remainder_limb;
+  mp_size_t ns, nn, qn;
+  mp_ptr np, qp;
+  mp_limb_t rl;
 
   if (divisor == 0)
     DIVIDE_BY_ZERO;
 
-  dividend_size = dividend->_mp_size;
-  size = ABS (dividend_size);
+  ns = SIZ(dividend);
+  if (ns == 0)
+    {
+      SIZ(quot) = 0;
+      SIZ(rem) = 0;
+      return 0;
+    }
 
-  /* No need for temporary allocation and copying if QUOT == DIVIDEND as
-     the divisor is just one limb, and thus no intermediate remainders
-     need to be stored.  */
+  nn = ABS(ns);
+  MPZ_REALLOC (quot, nn);
+  qp = PTR(quot);
+  np = PTR(dividend);
 
-  if (quot->_mp_alloc < size)
-    _mpz_realloc (quot, size);
+#if GMP_NAIL_BITS != 0
+  if (divisor > GMP_NUMB_MAX)
+    {
+      mp_limb_t dp[2];
+      mp_ptr rp;
+      mp_size_t rn;
 
-  quot_ptr = quot->_mp_d;
+      if (nn == 1)		/* tdiv_qr requirements; tested above for 0 */
+	{
+	  SIZ(quot) = 0;
+	  rl = np[0];
+	  SIZ(rem) = ns >= 0 ? 1 : -1;
+	  PTR(rem)[0] = rl;
+	  return rl;
+	}
 
-  remainder_limb = mpn_divmod_1 (quot_ptr, dividend->_mp_d, size,
-				 (mp_limb_t) divisor);
+      MPZ_REALLOC (rem, 2);
+      rp = PTR(rem);
 
-  if (remainder_limb == 0)
-    rem->_mp_size = 0;
+      dp[0] = divisor & GMP_NUMB_MASK;
+      dp[1] = divisor >> GMP_NUMB_BITS;
+      mpn_tdiv_qr (qp, rp, (mp_size_t) 0, np, nn, dp, (mp_size_t) 2);
+      rl = rp[0] + (rp[1] << GMP_NUMB_BITS);
+      qn = nn - 2 + 1; qn -= qp[qn - 1] == 0; qn -= qn != 0 && qp[qn - 1] == 0;
+      rn = 2 - (rp[1] == 0);  rn -= (rp[rn - 1] == 0);
+      SIZ(rem) = ns >= 0 ? rn : -rn;
+    }
   else
+#endif
     {
-      /* Store the single-limb remainder.  We don't check if there's space
-	 for just one limb, since no function ever makes zero space.  */
-      rem->_mp_size = dividend_size >= 0 ? 1 : -1;
-      rem->_mp_d[0] = remainder_limb;
+      rl = mpn_divrem_1 (qp, (mp_size_t) 0, np, nn, (mp_limb_t) divisor);
+      if (rl == 0)
+	SIZ(rem) = 0;
+      else
+	{
+	  /* Store the single-limb remainder.  We don't check if there's space
+	     for just one limb, since no function ever makes zero space.  */
+	  SIZ(rem) = ns >= 0 ? 1 : -1;
+	  PTR(rem)[0] = rl;
+	}
+      qn = nn - (qp[nn - 1] == 0);
     }
 
-  /* The quotient is SIZE limbs, but the most significant might be zero. */
-  size -= size != 0 && quot_ptr[size - 1] == 0;
-  quot->_mp_size = dividend_size >= 0 ? size : -size;
-
-  return remainder_limb;
+  SIZ(quot) = ns >= 0 ? qn : -qn;
+  return rl;
 }