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/mpz/aors.h b/third_party/gmp/mpz/aors.h
new file mode 100644
index 0000000..722d480
--- /dev/null
+++ b/third_party/gmp/mpz/aors.h
@@ -0,0 +1,123 @@
+/* mpz_add, mpz_sub -- add or subtract integers.
+
+Copyright 1991, 1993, 1994, 1996, 2000, 2001, 2011, 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"
+
+
+#ifdef OPERATION_add
+#define FUNCTION mpz_add
+#define VARIATION
+#endif
+#ifdef OPERATION_sub
+#define FUNCTION mpz_sub
+#define VARIATION -
+#endif
+
+#ifndef FUNCTION
+Error, need OPERATION_add or OPERATION_sub
+#endif
+
+
+void
+FUNCTION (mpz_ptr w, mpz_srcptr u, mpz_srcptr v)
+{
+ mp_srcptr up, vp;
+ mp_ptr wp;
+ mp_size_t usize, vsize, wsize;
+ mp_size_t abs_usize;
+ mp_size_t abs_vsize;
+
+ usize = SIZ(u);
+ vsize = VARIATION SIZ(v);
+ abs_usize = ABS (usize);
+ abs_vsize = ABS (vsize);
+
+ if (abs_usize < abs_vsize)
+ {
+ /* Swap U and V. */
+ MPZ_SRCPTR_SWAP (u, v);
+ MP_SIZE_T_SWAP (usize, vsize);
+ MP_SIZE_T_SWAP (abs_usize, abs_vsize);
+ }
+
+ /* True: ABS_USIZE >= ABS_VSIZE. */
+
+ /* If not space for w (and possible carry), increase space. */
+ wsize = abs_usize + 1;
+ wp = MPZ_REALLOC (w, wsize);
+
+ /* These must be after realloc (u or v may be the same as w). */
+ up = PTR(u);
+ vp = PTR(v);
+
+ if ((usize ^ vsize) < 0)
+ {
+ /* U and V have different sign. Need to compare them to determine
+ which operand to subtract from which. */
+
+ /* This test is right since ABS_USIZE >= ABS_VSIZE. */
+ if (abs_usize != abs_vsize)
+ {
+ mpn_sub (wp, up, abs_usize, vp, abs_vsize);
+ wsize = abs_usize;
+ MPN_NORMALIZE (wp, wsize);
+ if (usize < 0)
+ wsize = -wsize;
+ }
+ else if (mpn_cmp (up, vp, abs_usize) < 0)
+ {
+ mpn_sub_n (wp, vp, up, abs_usize);
+ wsize = abs_usize;
+ MPN_NORMALIZE (wp, wsize);
+ if (usize >= 0)
+ wsize = -wsize;
+ }
+ else
+ {
+ mpn_sub_n (wp, up, vp, abs_usize);
+ wsize = abs_usize;
+ MPN_NORMALIZE (wp, wsize);
+ if (usize < 0)
+ wsize = -wsize;
+ }
+ }
+ else
+ {
+ /* U and V have same sign. Add them. */
+ mp_limb_t cy_limb = mpn_add (wp, up, abs_usize, vp, abs_vsize);
+ wp[abs_usize] = cy_limb;
+ wsize = abs_usize + cy_limb;
+ if (usize < 0)
+ wsize = -wsize;
+ }
+
+ SIZ(w) = wsize;
+}