Index: gcc/mpfr/get_z_exp.c |
diff --git a/gcc/mpfr/get_z_exp.c b/gcc/mpfr/get_z_exp.c |
deleted file mode 100644 |
index fba973b905614e7ffdb7bb506eae9b9f06d96b31..0000000000000000000000000000000000000000 |
--- a/gcc/mpfr/get_z_exp.c |
+++ /dev/null |
@@ -1,72 +0,0 @@ |
-/* mpfr_get_z_exp -- get a multiple-precision integer and an exponent |
- from a floating-point number |
- |
-Copyright 2000, 2001, 2002, 2003, 2004, 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. */ |
- |
-#include "mpfr-impl.h" |
- |
-/* puts the mantissa of f into z, and returns 'exp' such that f = z * 2^exp |
- * |
- * 0 doesn't have an exponent, therefore the returned exponent in this case |
- * isn't really important. We choose to return __gmpfr_emin because |
- * 1) it is in the exponent range [__gmpfr_emin,__gmpfr_emax], |
- * 2) the smaller a number is (in absolute value), the smaller its |
- * exponent is. In other words, the f -> exp function is monotonous |
- * on nonnegative numbers. |
- * Note that this is different from the C function frexp(). |
- */ |
- |
-mp_exp_t |
-mpfr_get_z_exp (mpz_ptr z, mpfr_srcptr f) |
-{ |
- mp_size_t fn; |
- int sh; |
- |
- MPFR_ASSERTD (MPFR_IS_FP (f)); |
- |
- if (MPFR_UNLIKELY (MPFR_IS_ZERO (f))) |
- { |
- mpz_set_ui (z, 0); |
- return __gmpfr_emin; |
- } |
- |
- fn = MPFR_LIMB_SIZE(f); |
- |
- /* check whether allocated space for z is enough */ |
- if (MPFR_UNLIKELY (ALLOC (z) < fn)) |
- MPZ_REALLOC (z, fn); |
- |
- MPFR_UNSIGNED_MINUS_MODULO (sh, MPFR_PREC (f)); |
- if (MPFR_LIKELY (sh)) |
- mpn_rshift (PTR (z), MPFR_MANT (f), fn, sh); |
- else |
- MPN_COPY (PTR (z), MPFR_MANT (f), fn); |
- |
- SIZ(z) = MPFR_IS_NEG (f) ? -fn : fn; |
- |
- /* Test if the result is representable. Later, we could choose |
- to return MPFR_EXP_MIN if it isn't, or perhaps MPFR_EXP_MAX |
- to signal an error. The mantissa would still be meaningful. */ |
- MPFR_ASSERTD ((mp_exp_unsigned_t) MPFR_GET_EXP (f) - MPFR_EXP_MIN |
- >= (mp_exp_unsigned_t) MPFR_PREC(f)); |
- |
- return MPFR_GET_EXP (f) - MPFR_PREC (f); |
-} |