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Unified Diff: gcc/mpfr/check.c

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
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Index: gcc/mpfr/check.c
diff --git a/gcc/mpfr/check.c b/gcc/mpfr/check.c
deleted file mode 100644
index 88db5ae9cd3ee0fbee90546bfd1f868f4eee3735..0000000000000000000000000000000000000000
--- a/gcc/mpfr/check.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* mpfr_check -- Check if a floating-point number has not been corrupted.
-
-Copyright 2003, 2004, 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"
-
-/*
- * Check if x is a valid mpfr_t initializes by mpfr_init
- * Returns 0 if isn't valid
- */
-int
-mpfr_check (mpfr_srcptr x)
-{
- mp_size_t s, i;
- mp_limb_t tmp;
- volatile mp_limb_t *xm;
- int rw;
-
- /* Check Sign */
- if (MPFR_SIGN(x) != MPFR_SIGN_POS && MPFR_SIGN(x) != MPFR_SIGN_NEG)
- return 0;
- /* Check Precision */
- if ( (MPFR_PREC(x) < MPFR_PREC_MIN) || (MPFR_PREC(x) > MPFR_PREC_MAX))
- return 0;
- /* Check Mantissa */
- xm = MPFR_MANT(x);
- if (!xm)
- return 0;
- /* Check size of mantissa */
- s = MPFR_GET_ALLOC_SIZE(x);
- if (s<=0 || s > MP_SIZE_T_MAX ||
- MPFR_PREC(x) > ((mp_prec_t)s*BITS_PER_MP_LIMB))
- return 0;
- /* Acces all the mp_limb of the mantissa: may do a seg fault */
- for(i = 0 ; i < s ; i++)
- tmp = xm[i];
- /* Check if it isn't singular*/
- if (MPFR_IS_PURE_FP(x))
- {
- /* Check first mp_limb of mantissa (Must start with a 1 bit) */
- if ( ((xm[MPFR_LIMB_SIZE(x)-1])>>(BITS_PER_MP_LIMB-1)) == 0)
- return 0;
- /* Check last mp_limb of mantissa */
- rw = (MPFR_PREC(x) % BITS_PER_MP_LIMB);
- if (rw != 0)
- {
- tmp = MPFR_LIMB_MASK (BITS_PER_MP_LIMB - rw);
- if ((xm[0] & tmp) != 0)
- return 0;
- }
- /* Check exponent range */
- if ((MPFR_EXP (x) < __gmpfr_emin) || (MPFR_EXP (x) > __gmpfr_emax))
- return 0;
- }
- else
- {
- /* Singular value is zero, inf or nan */
- MPFR_ASSERTD(MPFR_IS_ZERO(x) || MPFR_IS_NAN(x) || MPFR_IS_INF(x));
- }
- return 1;
-}
-
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