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-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/get_q.c63
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diff --git a/Build/source/libs/mpfr/mpfr-src/src/get_q.c b/Build/source/libs/mpfr/mpfr-src/src/get_q.c
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+++ b/Build/source/libs/mpfr/mpfr-src/src/get_q.c
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+/* mpfr_get_q -- get a multiple-precision rational from
+ a floating-point number
+
+Copyright 2004, 2006-2017 Free Software Foundation, Inc.
+Contributed by the AriC and Caramba projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR Library is free software; you can redistribute it and/or modify
+it under the terms of 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.
+
+The GNU MPFR 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 Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include "mpfr-impl.h"
+
+#ifndef MPFR_USE_MINI_GMP
+/* part of the code was copied from get_z.c */
+void
+mpfr_get_q (mpq_ptr q, mpfr_srcptr f)
+{
+ mpfr_exp_t exp;
+ mpz_ptr u = mpq_numref (q);
+ mpz_ptr v = mpq_denref (q);
+
+ /* v is set to 1 and will not be changed directly.
+ This ensures that q will be canonical. */
+ mpz_set_ui (v, 1);
+
+ if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (f)))
+ {
+ if (MPFR_UNLIKELY (MPFR_NOTZERO (f)))
+ MPFR_SET_ERANGEFLAG ();
+ mpz_set_ui (u, 0);
+ /* The ternary value is 0 even for infinity. Giving the rounding
+ direction in this case would not make much sense anyway, and
+ the direction would not necessarily match rnd. */
+ }
+ else
+ {
+ exp = mpfr_get_z_2exp (u, f);
+ if (exp >= 0)
+ {
+ MPFR_ASSERTN (exp <= (mp_bitcnt_t) -1);
+ mpz_mul_2exp (u, u, exp);
+ }
+ else /* exp < 0 */
+ {
+ MPFR_ASSERTN (-exp <= (mp_bitcnt_t) -1);
+ mpq_div_2exp (q, q, -exp);
+ }
+ }
+}
+#endif