Revert "Remove gmp from AOS"
This reverts commit f37c97684f0910a3f241394549392f00145ab0f7.
We need gmp for SymEngine for symbolicmanipultion in C++
Change-Id: Ia13216d1715cf96944f7b4f422b7a799f921d4a4
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/third_party/gmp/mpf/ui_div.c b/third_party/gmp/mpf/ui_div.c
new file mode 100644
index 0000000..d228bd4
--- /dev/null
+++ b/third_party/gmp/mpf/ui_div.c
@@ -0,0 +1,127 @@
+/* mpf_ui_div -- Divide an unsigned integer with a float.
+
+Copyright 1993-1996, 2000-2002, 2004, 2005, 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 <stdio.h> /* for NULL */
+#include "gmp-impl.h"
+#include "longlong.h"
+
+
+void
+mpf_ui_div (mpf_ptr r, unsigned long int u, mpf_srcptr v)
+{
+ mp_srcptr vp;
+ mp_ptr rp, tp, remp, new_vp;
+ mp_size_t vsize;
+ mp_size_t rsize, prospective_rsize, zeros, tsize, high_zero;
+ mp_size_t sign_quotient;
+ mp_size_t prec;
+ mp_exp_t rexp;
+ TMP_DECL;
+
+ vsize = v->_mp_size;
+ sign_quotient = vsize;
+
+ if (UNLIKELY (vsize == 0))
+ DIVIDE_BY_ZERO;
+
+ if (UNLIKELY (u == 0))
+ {
+ r->_mp_size = 0;
+ r->_mp_exp = 0;
+ return;
+ }
+
+ vsize = ABS (vsize);
+ prec = r->_mp_prec;
+
+ TMP_MARK;
+ rexp = 1 - v->_mp_exp + 1;
+
+ rp = r->_mp_d;
+ vp = v->_mp_d;
+
+ prospective_rsize = 1 - vsize + 1; /* quot from using given u,v sizes */
+ rsize = prec + 1; /* desired quot size */
+
+ zeros = rsize - prospective_rsize; /* padding u to give rsize */
+ tsize = 1 + zeros; /* u with zeros */
+
+ if (WANT_TMP_DEBUG)
+ {
+ /* separate alloc blocks, for malloc debugging */
+ remp = TMP_ALLOC_LIMBS (vsize);
+ tp = TMP_ALLOC_LIMBS (tsize);
+ new_vp = NULL;
+ if (rp == vp)
+ new_vp = TMP_ALLOC_LIMBS (vsize);
+ }
+ else
+ {
+ /* one alloc with calculated size, for efficiency */
+ mp_size_t size = vsize + tsize + (rp == vp ? vsize : 0);
+ remp = TMP_ALLOC_LIMBS (size);
+ tp = remp + vsize;
+ new_vp = tp + tsize;
+ }
+
+ /* ensure divisor doesn't overlap quotient */
+ if (rp == vp)
+ {
+ MPN_COPY (new_vp, vp, vsize);
+ vp = new_vp;
+ }
+
+ MPN_ZERO (tp, tsize-1);
+
+ tp[tsize - 1] = u & GMP_NUMB_MASK;
+#if BITS_PER_ULONG > GMP_NUMB_BITS
+ if (u > GMP_NUMB_MAX)
+ {
+ /* tsize-vsize+1 == rsize, so tsize >= rsize. rsize == prec+1 >= 2,
+ so tsize >= 2, hence there's room for 2-limb u with nails */
+ ASSERT (tsize >= 2);
+ tp[tsize - 1] = u >> GMP_NUMB_BITS;
+ tp[tsize - 2] = u & GMP_NUMB_MASK;
+ rexp++;
+ }
+#endif
+
+ ASSERT (tsize-vsize+1 == rsize);
+ mpn_tdiv_qr (rp, remp, (mp_size_t) 0, tp, tsize, vp, vsize);
+
+ /* strip possible zero high limb */
+ high_zero = (rp[rsize-1] == 0);
+ rsize -= high_zero;
+ rexp -= high_zero;
+
+ r->_mp_size = sign_quotient >= 0 ? rsize : -rsize;
+ r->_mp_exp = rexp;
+ TMP_FREE;
+}