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/tests/cxx/t-ops2f.cc b/third_party/gmp/tests/cxx/t-ops2f.cc
new file mode 100644
index 0000000..71c9e10
--- /dev/null
+++ b/third_party/gmp/tests/cxx/t-ops2f.cc
@@ -0,0 +1,87 @@
+/* Test mp*_class operators and functions.
+
+Copyright 2011, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite 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 a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "t-ops2.h"
+
+void checkf (){
+  ASSERT_ALWAYS(sqrt(mpf_class(7))>2.64);
+  ASSERT_ALWAYS(sqrt(mpf_class(7))<2.65);
+  ASSERT_ALWAYS(sqrt(mpf_class(0))==0);
+  // TODO: add some consistency checks, as described in
+  // https://gmplib.org/list-archives/gmp-bugs/2013-February/002940.html
+  CHECK1(mpf_class,1.9,trunc);
+  CHECK1(mpf_class,1.9,floor);
+  CHECK1(mpf_class,1.9,ceil);
+  CHECK1(mpf_class,4.3,trunc);
+  CHECK1(mpf_class,4.3,floor);
+  CHECK1(mpf_class,4.3,ceil);
+  CHECK1(mpf_class,-7.1,trunc);
+  CHECK1(mpf_class,-7.1,floor);
+  CHECK1(mpf_class,-7.1,ceil);
+  CHECK1(mpf_class,-2.8,trunc);
+  CHECK1(mpf_class,-2.8,floor);
+  CHECK1(mpf_class,-2.8,ceil);
+  CHECK1(mpf_class,-1.5,trunc);
+  CHECK1(mpf_class,-1.5,floor);
+  CHECK1(mpf_class,-1.5,ceil);
+  CHECK1(mpf_class,2.5,trunc);
+  CHECK1(mpf_class,2.5,floor);
+  CHECK1(mpf_class,2.5,ceil);
+  ASSERT_ALWAYS(hypot(mpf_class(-3),mpf_class(4))>4.9);
+  ASSERT_ALWAYS(hypot(mpf_class(-3),mpf_class(4))<5.1);
+  ASSERT_ALWAYS(hypot(mpf_class(-3),4.)>4.9);
+  ASSERT_ALWAYS(hypot(-3.,mpf_class(4))<5.1);
+  ASSERT_ALWAYS(hypot(mpf_class(-3),4l)>4.9);
+  ASSERT_ALWAYS(hypot(-3l,mpf_class(4))<5.1);
+  ASSERT_ALWAYS(hypot(mpf_class(-3),4ul)>4.9);
+  ASSERT_ALWAYS(hypot(3ul,mpf_class(4))<5.1);
+  CHECK(mpf_class,mpq_class,1.5,2.25,+);
+  CHECK(mpf_class,mpq_class,1.5,2.25,-);
+  CHECK(mpf_class,mpq_class,1.5,-2.25,*);
+  CHECK(mpf_class,mpq_class,1.5,-2,/);
+  CHECK_MPQ(mpf_class,-5.5,-2.25,+);
+  CHECK_MPQ(mpf_class,-5.5,-2.25,-);
+  CHECK_MPQ(mpf_class,-5.5,-2.25,*);
+  CHECK_MPQ(mpf_class,-5.25,-0.5,/);
+  CHECK_MPQ(mpf_class,5,-2,<);
+  CHECK_MPQ(mpf_class,5,-2,>);
+  CHECK_MPQ(mpf_class,5,-2,<=);
+  CHECK_MPQ(mpf_class,5,-2,>=);
+  CHECK_MPQ(mpf_class,5,-2,==);
+  CHECK_MPQ(mpf_class,5,-2,!=);
+  CHECK_MPQ(mpf_class,0,0,<);
+  CHECK_MPQ(mpf_class,0,0,>);
+  CHECK_MPQ(mpf_class,0,0,<=);
+  CHECK_MPQ(mpf_class,0,0,>=);
+  CHECK_MPQ(mpf_class,0,0,==);
+  CHECK_MPQ(mpf_class,0,0,!=);
+}
+
+int
+main (void)
+{
+  tests_start();
+
+  // Enough precision for 1 + denorm_min
+  mpf_set_default_prec(DBL_MANT_DIG-DBL_MIN_EXP+42);
+  checkf();
+
+  tests_end();
+  return 0;
+}