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Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/ui_pow_ui.c')
-rw-r--r--Build/source/libs/mpfr/mpfr-src/src/ui_pow_ui.c95
1 files changed, 0 insertions, 95 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/ui_pow_ui.c b/Build/source/libs/mpfr/mpfr-src/src/ui_pow_ui.c
deleted file mode 100644
index 79b25bf5fb7..00000000000
--- a/Build/source/libs/mpfr/mpfr-src/src/ui_pow_ui.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* mpfr_ui_pow_ui -- compute the power between two machine integers
-
-Copyright 1999-2020 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
-https://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"
-
-int
-mpfr_ui_pow_ui (mpfr_ptr x, unsigned long int y, unsigned long int n,
- mpfr_rnd_t rnd)
-{
- mpfr_exp_t err;
- unsigned long m;
- mpfr_t res;
- mpfr_prec_t prec;
- int size_n;
- int inexact;
- MPFR_ZIV_DECL (loop);
- MPFR_SAVE_EXPO_DECL (expo);
-
- if (MPFR_UNLIKELY (n <= 1))
- {
- if (n == 1)
- return mpfr_set_ui (x, y, rnd); /* y^1 = y */
- else
- return mpfr_set_ui (x, 1, rnd); /* y^0 = 1 for any y */
- }
- else if (MPFR_UNLIKELY (y <= 1))
- {
- if (y == 1)
- return mpfr_set_ui (x, 1, rnd); /* 1^n = 1 for any n > 0 */
- else
- return mpfr_set_ui (x, 0, rnd); /* 0^n = 0 for any n > 0 */
- }
-
- for (size_n = 0, m = n; m; size_n++, m >>= 1);
-
- MPFR_SAVE_EXPO_MARK (expo);
- prec = MPFR_PREC (x) + 3 + size_n;
- mpfr_init2 (res, prec);
-
- MPFR_ZIV_INIT (loop, prec);
- for (;;)
- {
- int i = size_n;
-
- inexact = mpfr_set_ui (res, y, MPFR_RNDU);
- err = 1;
- /* now 2^(i-1) <= n < 2^i: i=1+floor(log2(n)) */
- for (i -= 2; i >= 0; i--)
- {
- inexact |= mpfr_sqr (res, res, MPFR_RNDU);
- err++;
- if (n & (1UL << i))
- inexact |= mpfr_mul_ui (res, res, y, MPFR_RNDU);
- }
- /* since the loop is executed floor(log2(n)) times,
- we have err = 1+floor(log2(n)).
- Since prec >= MPFR_PREC(x) + 4 + floor(log2(n)), prec > err */
- err = prec - err;
-
- if (MPFR_LIKELY (inexact == 0
- || MPFR_CAN_ROUND (res, err, MPFR_PREC (x), rnd)))
- break;
-
- /* Actualisation of the precision */
- MPFR_ZIV_NEXT (loop, prec);
- mpfr_set_prec (res, prec);
- }
- MPFR_ZIV_FREE (loop);
-
- inexact = mpfr_set (x, res, rnd);
-
- mpfr_clear (res);
-
- MPFR_SAVE_EXPO_FREE (expo);
- return mpfr_check_range (x, inexact, rnd);
-}