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-rw-r--r--Build/source/libs/gmp/gmp-6.0.0/mpz/get_si.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpz/get_si.c b/Build/source/libs/gmp/gmp-6.0.0/mpz/get_si.c
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index 00000000000..6e9752636b2
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+++ b/Build/source/libs/gmp/gmp-6.0.0/mpz/get_si.c
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+/* mpz_get_si(integer) -- Return the least significant digit from INTEGER.
+
+Copyright 1991, 1993-1995, 2000-2002, 2006, 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.h"
+#include "gmp-impl.h"
+
+signed long int
+mpz_get_si (mpz_srcptr z) __GMP_NOTHROW
+{
+ mp_ptr zp = PTR (z);
+ mp_size_t size = SIZ (z);
+ mp_limb_t zl = zp[0];
+
+#if GMP_NAIL_BITS != 0
+ if (ULONG_MAX > GMP_NUMB_MAX && ABS (size) >= 2)
+ zl |= zp[1] << GMP_NUMB_BITS;
+#endif
+
+ if (size > 0)
+ return zl & LONG_MAX;
+ else if (size < 0)
+ /* This expression is necessary to properly handle 0x80000000 */
+ return -1 - (long) ((zl - 1) & LONG_MAX);
+ else
+ return 0;
+}