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/set_f.c b/third_party/gmp/mpz/set_f.c
new file mode 100644
index 0000000..b3ecc0b
--- /dev/null
+++ b/third_party/gmp/mpz/set_f.c
@@ -0,0 +1,71 @@
+/* mpz_set_f (dest_integer, src_float) -- Assign DEST_INTEGER from SRC_FLOAT.
+
+Copyright 1996, 2001, 2012, 2016 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_set_f (mpz_ptr w, mpf_srcptr u)
+{
+ mp_ptr wp, up;
+ mp_size_t size;
+ mp_exp_t exp;
+
+ /* abs(u)<1 truncates to zero */
+ exp = EXP (u);
+ if (exp <= 0)
+ {
+ SIZ(w) = 0;
+ return;
+ }
+
+ wp = MPZ_NEWALLOC (w, exp);
+ up = PTR(u);
+
+ size = SIZ (u);
+ SIZ(w) = (size >= 0 ? exp : -exp);
+ size = ABS (size);
+
+ if (exp > size)
+ {
+ /* pad with low zeros to get a total "exp" many limbs */
+ mp_size_t zeros = exp - size;
+ MPN_ZERO (wp, zeros);
+ wp += zeros;
+ }
+ else
+ {
+ /* exp<=size, truncate to the high "exp" many limbs */
+ up += (size - exp);
+ size = exp;
+ }
+
+ MPN_COPY (wp, up, size);
+}