From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001
From: Duncan Wilkie <antigravityd@gmail.com>
Date: Sat, 18 Nov 2023 06:11:09 -0600
Subject: Initial commit.

---
 gmp-6.3.0/mpz/tdiv_qr_ui.c | 100 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 gmp-6.3.0/mpz/tdiv_qr_ui.c

(limited to 'gmp-6.3.0/mpz/tdiv_qr_ui.c')

diff --git a/gmp-6.3.0/mpz/tdiv_qr_ui.c b/gmp-6.3.0/mpz/tdiv_qr_ui.c
new file mode 100644
index 0000000..4e1c9fa
--- /dev/null
+++ b/gmp-6.3.0/mpz/tdiv_qr_ui.c
@@ -0,0 +1,100 @@
+/* mpz_tdiv_qr_ui(quot,rem,dividend,short_divisor) --
+   Set QUOT to DIVIDEND / SHORT_DIVISOR
+   and REM to DIVIDEND mod SHORT_DIVISOR.
+
+Copyright 1991, 1993, 1994, 1996, 1998, 2001, 2002, 2004, 2012, 2015
+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 either:
+
+  * the GNU Lesser General Public License as published by the Free
+    Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+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 copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+
+unsigned long int
+mpz_tdiv_qr_ui (mpz_ptr quot, mpz_ptr rem, mpz_srcptr dividend, unsigned long int divisor)
+{
+  mp_size_t ns, nn, qn;
+  mp_ptr np, qp;
+  mp_limb_t rl;
+
+  if (UNLIKELY (divisor == 0))
+    DIVIDE_BY_ZERO;
+
+  ns = SIZ(dividend);
+  if (ns == 0)
+    {
+      SIZ(quot) = 0;
+      SIZ(rem) = 0;
+      return 0;
+    }
+
+  nn = ABS(ns);
+  qp = MPZ_REALLOC (quot, nn);
+  np = PTR(dividend);
+
+#if BITS_PER_ULONG > GMP_NUMB_BITS  /* avoid warnings about shift amount */
+  if (divisor > GMP_NUMB_MAX)
+    {
+      mp_limb_t dp[2];
+      mp_ptr rp;
+      mp_size_t rn;
+
+      if (nn == 1)		/* tdiv_qr requirements; tested above for 0 */
+	{
+	  SIZ(quot) = 0;
+	  rl = np[0];
+	  SIZ(rem) = ns >= 0 ? 1 : -1;
+	  MPZ_NEWALLOC (rem, 1)[0] = rl;
+	  return rl;
+	}
+
+      rp = MPZ_REALLOC (rem, 2);
+
+      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
+    {
+      rl = mpn_divrem_1 (qp, (mp_size_t) 0, np, nn, (mp_limb_t) divisor);
+      if (rl == 0)
+	SIZ(rem) = 0;
+      else
+	{
+	  SIZ(rem) = ns >= 0 ? 1 : -1;
+	  MPZ_NEWALLOC (rem, 1)[0] = rl;
+	}
+      qn = nn - (qp[nn - 1] == 0);
+    }
+
+  SIZ(quot) = ns >= 0 ? qn : -qn;
+  return rl;
+}
-- 
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