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/cmp_si.c b/third_party/gmp/mpf/cmp_si.c
new file mode 100644
index 0000000..d8d9880
--- /dev/null
+++ b/third_party/gmp/mpf/cmp_si.c
@@ -0,0 +1,109 @@
+/* mpf_cmp_si -- Compare a float with a signed integer.
+
+Copyright 1993-1995, 1999-2002, 2004, 2012, 2015 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"
+
+int
+mpf_cmp_si (mpf_srcptr u, long int vval) __GMP_NOTHROW
+{
+ mp_srcptr up;
+ mp_size_t usize;
+ mp_exp_t uexp;
+ mp_limb_t ulimb;
+ int usign;
+ unsigned long abs_vval;
+
+ usize = SIZ (u);
+
+ /* 1. Are the signs different? */
+ if ((usize < 0) == (vval < 0)) /* don't use xor, type size may differ */
+ {
+ /* U and V are both non-negative or both negative. */
+ if (usize == 0)
+ /* vval >= 0 */
+ return -(vval != 0);
+ if (vval == 0)
+ /* usize >= 0 */
+ return usize != 0;
+ /* Fall out. */
+ }
+ else
+ {
+ /* Either U or V is negative, but not both. */
+ return usize >= 0 ? 1 : -1;
+ }
+
+ /* U and V have the same sign and are both non-zero. */
+
+ /* 2. Are the exponents different (V's exponent == 1)? */
+ uexp = EXP (u);
+ usign = usize >= 0 ? 1 : -1;
+ usize = ABS (usize);
+ abs_vval = ABS_CAST (unsigned long, vval);
+
+#if GMP_NAIL_BITS != 0
+ if (uexp != 1 + (abs_vval > GMP_NUMB_MAX))
+ return (uexp < 1 + (abs_vval > GMP_NUMB_MAX)) ? -usign : usign;
+#else
+ if (uexp != 1)
+ return (uexp < 1) ? -usign : usign;
+#endif
+
+ up = PTR (u);
+
+ ASSERT (usize > 0);
+ ulimb = up[--usize];
+#if GMP_NAIL_BITS != 0
+ if (uexp == 2)
+ {
+ if ((ulimb >> GMP_NAIL_BITS) != 0)
+ return usign;
+ ulimb = (ulimb << GMP_NUMB_BITS);
+ if (usize != 0) ulimb |= up[--usize];
+ }
+#endif
+
+ /* 3. Compare the most significant mantissa limb with V. */
+ if (ulimb != abs_vval)
+ return (ulimb < abs_vval) ? -usign : usign;
+
+ /* Ignore zeroes at the low end of U. */
+ for (; *up == 0; ++up)
+ --usize;
+
+ /* 4. Now, if the number of limbs are different, we have a difference
+ since we have made sure the trailing limbs are not zero. */
+ if (usize > 0)
+ return usign;
+
+ /* Wow, we got zero even if we tried hard to avoid it. */
+ return 0;
+}