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diff --git a/Build/source/libs/mpfr/mpfr-3.1.2/src/exp.c b/Build/source/libs/mpfr/mpfr-3.1.2/src/exp.c
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+++ b/Build/source/libs/mpfr/mpfr-3.1.2/src/exp.c
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+/* mpfr_exp -- exponential of a floating-point number
+
+Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+Contributed by the AriC and Caramel 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"
+
+/* #define DEBUG */
+
+int
+mpfr_exp (mpfr_ptr y, mpfr_srcptr x, mpfr_rnd_t rnd_mode)
+{
+ mpfr_exp_t expx;
+ mpfr_prec_t precy;
+ int inexact;
+ MPFR_SAVE_EXPO_DECL (expo);
+
+ MPFR_LOG_FUNC
+ (("x[%Pu]=%.*Rg rnd=%d", mpfr_get_prec (x), mpfr_log_prec, x, rnd_mode),
+ ("y[%Pu]=%.*Rg inexact=%d",
+ mpfr_get_prec (y), mpfr_log_prec, y, inexact));
+
+ if (MPFR_UNLIKELY( MPFR_IS_SINGULAR(x) ))
+ {
+ if (MPFR_IS_NAN(x))
+ {
+ MPFR_SET_NAN(y);
+ MPFR_RET_NAN;
+ }
+ else if (MPFR_IS_INF(x))
+ {
+ if (MPFR_IS_POS(x))
+ MPFR_SET_INF(y);
+ else
+ MPFR_SET_ZERO(y);
+ MPFR_SET_POS(y);
+ MPFR_RET(0);
+ }
+ else
+ {
+ MPFR_ASSERTD(MPFR_IS_ZERO(x));
+ return mpfr_set_ui (y, 1, rnd_mode);
+ }
+ }
+
+ /* First, let's detect most overflow and underflow cases. */
+ {
+ mpfr_t e, bound;
+
+ /* We must extended the exponent range and save the flags now. */
+ MPFR_SAVE_EXPO_MARK (expo);
+
+ mpfr_init2 (e, sizeof (mpfr_exp_t) * CHAR_BIT);
+ mpfr_init2 (bound, 32);
+
+ inexact = mpfr_set_exp_t (e, expo.saved_emax, MPFR_RNDN);
+ MPFR_ASSERTD (inexact == 0);
+ mpfr_const_log2 (bound, expo.saved_emax < 0 ? MPFR_RNDD : MPFR_RNDU);
+ mpfr_mul (bound, bound, e, MPFR_RNDU);
+ if (MPFR_UNLIKELY (mpfr_cmp (x, bound) >= 0))
+ {
+ /* x > log(2^emax), thus exp(x) > 2^emax */
+ mpfr_clears (e, bound, (mpfr_ptr) 0);
+ MPFR_SAVE_EXPO_FREE (expo);
+ return mpfr_overflow (y, rnd_mode, 1);
+ }
+
+ inexact = mpfr_set_exp_t (e, expo.saved_emin, MPFR_RNDN);
+ MPFR_ASSERTD (inexact == 0);
+ inexact = mpfr_sub_ui (e, e, 2, MPFR_RNDN);
+ MPFR_ASSERTD (inexact == 0);
+ mpfr_const_log2 (bound, expo.saved_emin < 0 ? MPFR_RNDU : MPFR_RNDD);
+ mpfr_mul (bound, bound, e, MPFR_RNDD);
+ if (MPFR_UNLIKELY (mpfr_cmp (x, bound) <= 0))
+ {
+ /* x < log(2^(emin - 2)), thus exp(x) < 2^(emin - 2) */
+ mpfr_clears (e, bound, (mpfr_ptr) 0);
+ MPFR_SAVE_EXPO_FREE (expo);
+ return mpfr_underflow (y, rnd_mode == MPFR_RNDN ? MPFR_RNDZ : rnd_mode,
+ 1);
+ }
+
+ /* Other overflow/underflow cases must be detected
+ by the generic routines. */
+ mpfr_clears (e, bound, (mpfr_ptr) 0);
+ MPFR_SAVE_EXPO_FREE (expo);
+ }
+
+ expx = MPFR_GET_EXP (x);
+ precy = MPFR_PREC (y);
+
+ /* if x < 2^(-precy), then exp(x) i.e. gives 1 +/- 1 ulp(1) */
+ if (MPFR_UNLIKELY (expx < 0 && (mpfr_uexp_t) (-expx) > precy))
+ {
+ mpfr_exp_t emin = __gmpfr_emin;
+ mpfr_exp_t emax = __gmpfr_emax;
+ int signx = MPFR_SIGN (x);
+
+ MPFR_SET_POS (y);
+ if (MPFR_IS_NEG_SIGN (signx) && (rnd_mode == MPFR_RNDD ||
+ rnd_mode == MPFR_RNDZ))
+ {
+ __gmpfr_emin = 0;
+ __gmpfr_emax = 0;
+ mpfr_setmax (y, 0); /* y = 1 - epsilon */
+ inexact = -1;
+ }
+ else
+ {
+ __gmpfr_emin = 1;
+ __gmpfr_emax = 1;
+ mpfr_setmin (y, 1); /* y = 1 */
+ if (MPFR_IS_POS_SIGN (signx) && (rnd_mode == MPFR_RNDU ||
+ rnd_mode == MPFR_RNDA))
+ {
+ mp_size_t yn;
+ int sh;
+
+ yn = MPFR_LIMB_SIZE (y);
+ sh = (mpfr_prec_t) yn * GMP_NUMB_BITS - MPFR_PREC(y);
+ MPFR_MANT(y)[0] += MPFR_LIMB_ONE << sh;
+ inexact = 1;
+ }
+ else
+ inexact = -MPFR_FROM_SIGN_TO_INT(signx);
+ }
+
+ __gmpfr_emin = emin;
+ __gmpfr_emax = emax;
+ }
+ else /* General case */
+ {
+ if (MPFR_UNLIKELY (precy >= MPFR_EXP_THRESHOLD))
+ /* mpfr_exp_3 saves the exponent range and flags itself, otherwise
+ the flag changes in mpfr_exp_3 are lost */
+ inexact = mpfr_exp_3 (y, x, rnd_mode); /* O(M(n) log(n)^2) */
+ else
+ {
+ MPFR_SAVE_EXPO_MARK (expo);
+ inexact = mpfr_exp_2 (y, x, rnd_mode); /* O(n^(1/3) M(n)) */
+ MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
+ MPFR_SAVE_EXPO_FREE (expo);
+ }
+ }
+
+ return mpfr_check_range (y, inexact, rnd_mode);
+}