| Index: gcc/mpfr/gen_inverse.h
|
| diff --git a/gcc/mpfr/gen_inverse.h b/gcc/mpfr/gen_inverse.h
|
| deleted file mode 100644
|
| index d978f1ceb93e2e0fd6b1c9c92d362afb941a1e45..0000000000000000000000000000000000000000
|
| --- a/gcc/mpfr/gen_inverse.h
|
| +++ /dev/null
|
| @@ -1,106 +0,0 @@
|
| -/* generic inverse of a function.
|
| -
|
| -Copyright 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
| -Contributed by the Arenaire and Cacao 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 2.1 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.LIB. If not, write to
|
| -the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
| -MA 02110-1301, USA. */
|
| -
|
| -#define MPFR_NEED_LONGLONG_H
|
| -#include "mpfr-impl.h"
|
| -
|
| -#ifndef ACTION_SPECIAL
|
| -#define ACTION_SPECIAL
|
| -#endif
|
| -
|
| -#ifndef ACTION_TINY
|
| -#define ACTION_TINY
|
| -#endif
|
| -
|
| -/* example of use:
|
| -#define FUNCTION mpfr_sec
|
| -#define INVERSE mpfr_cos
|
| -#define ACTION_NAN(y) do { MPFR_SET_NAN(y); MPFR_RET_NAN; } while (1)
|
| -#define ACTION_INF(y) do { MPFR_SET_NAN(y); MPFR_RET_NAN; } while (1)
|
| -#define ACTION_ZERO(y) return mpfr_set_ui (y, 1, GMP_RNDN)
|
| -#include "gen_inverse.h"
|
| -*/
|
| -
|
| -int
|
| -FUNCTION (mpfr_ptr y, mpfr_srcptr x, mp_rnd_t rnd_mode)
|
| -{
|
| - mp_prec_t precy; /* target precision */
|
| - mp_prec_t m; /* working precision */
|
| - mpfr_t z; /* temporary variable to store INVERSE(x) */
|
| - int inexact; /* inexact flag */
|
| - MPFR_ZIV_DECL (loop);
|
| - MPFR_SAVE_EXPO_DECL (expo);
|
| -
|
| - if (MPFR_UNLIKELY(MPFR_IS_SINGULAR(x)))
|
| - {
|
| - if (MPFR_IS_NAN(x))
|
| - ACTION_NAN(y);
|
| - else if (MPFR_IS_INF(x))
|
| - ACTION_INF(y);
|
| - else /* x = 0 */
|
| - ACTION_ZERO(y,x);
|
| - }
|
| -
|
| - /* x is neither NaN, Inf nor zero */
|
| - MPFR_SAVE_EXPO_MARK (expo);
|
| - ACTION_TINY (y, x, rnd_mode); /* special case for very small input x */
|
| - precy = MPFR_PREC(y);
|
| - m = precy + MPFR_INT_CEIL_LOG2 (precy) + 3;
|
| - mpfr_init2 (z, m);
|
| -
|
| - MPFR_ZIV_INIT (loop, m);
|
| - for(;;)
|
| - {
|
| - MPFR_BLOCK_DECL (flags);
|
| -
|
| - MPFR_BLOCK (flags, INVERSE (z, x, GMP_RNDZ)); /* error k_u < 1 ulp */
|
| - /* FIXME: the following assumes that if an overflow happens with
|
| - MPFR_EMAX_MAX, then necessarily an underflow happens with
|
| - __gmpfr_emin */
|
| - if (MPFR_OVERFLOW (flags))
|
| - {
|
| - int s = MPFR_SIGN(z);
|
| - MPFR_ZIV_FREE (loop);
|
| - mpfr_clear (z);
|
| - MPFR_SAVE_EXPO_FREE (expo);
|
| - return mpfr_underflow (y, (rnd_mode == GMP_RNDN) ?
|
| - GMP_RNDZ : rnd_mode, s);
|
| - }
|
| - mpfr_ui_div (z, 1, z, GMP_RNDN);
|
| - /* the error is less than c_w + 2*c_u*k_u (see algorithms.tex),
|
| - where c_w = 1/2, c_u = 1 since z was rounded towards zero,
|
| - thus 1/2 + 2 < 4 */
|
| - if (MPFR_LIKELY (MPFR_CAN_ROUND (z, m - 2, precy, rnd_mode)))
|
| - break;
|
| - ACTION_SPECIAL;
|
| - MPFR_ZIV_NEXT (loop, m);
|
| - mpfr_set_prec (z, m);
|
| - }
|
| - MPFR_ZIV_FREE (loop);
|
| -
|
| - inexact = mpfr_set (y, z, rnd_mode);
|
| - mpfr_clear (z);
|
| -
|
| - end:
|
| - MPFR_SAVE_EXPO_FREE (expo);
|
| - return mpfr_check_range (y, inexact, rnd_mode);
|
| -}
|
|
|