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/dive_ui.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 gmp-6.3.0/mpz/dive_ui.c

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

diff --git a/gmp-6.3.0/mpz/dive_ui.c b/gmp-6.3.0/mpz/dive_ui.c
new file mode 100644
index 0000000..c859b96
--- /dev/null
+++ b/gmp-6.3.0/mpz/dive_ui.c
@@ -0,0 +1,68 @@
+/* mpz_divexact_ui -- exact division mpz by ulong.
+
+Copyright 2001, 2002, 2012 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"
+
+void
+mpz_divexact_ui (mpz_ptr dst, mpz_srcptr src, unsigned long divisor)
+{
+  mp_size_t  size, abs_size;
+  mp_ptr     dst_ptr;
+
+  if (UNLIKELY (divisor == 0))
+    DIVIDE_BY_ZERO;
+
+  /* For nails don't try to be clever if d is bigger than a limb, just fake
+     up an mpz_t and go to the main mpz_divexact.  */
+  if (divisor > GMP_NUMB_MAX)
+    {
+      mp_limb_t  dlimbs[2];
+      mpz_t      dz;
+      ALLOC(dz) = 2;
+      PTR(dz) = dlimbs;
+      mpz_set_ui (dz, divisor);
+      mpz_divexact (dst, src, dz);
+      return;
+    }
+
+  size = SIZ(src);
+  if (size == 0)
+    {
+      SIZ(dst) = 0;
+      return;
+    }
+  abs_size = ABS (size);
+
+  dst_ptr = MPZ_REALLOC (dst, abs_size);
+
+  MPN_DIVREM_OR_DIVEXACT_1 (dst_ptr, PTR(src), abs_size, (mp_limb_t) divisor);
+  abs_size -= (dst_ptr[abs_size-1] == 0);
+  SIZ(dst) = (size >= 0 ? abs_size : -abs_size);
+}
-- 
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