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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2012-02-22 03:53:19 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2012-02-22 03:53:19 +0000 |
| commit | 89b1f422fad8c50cd46b69748624d312922ef881 (patch) | |
| tree | dad278625378912197929a89552863c7942f688b /src/get_d.c | |
| parent | 6e9a7ddd09869245d0f46db6493370e0d9a98e54 (diff) | |
| download | mpfr-89b1f422fad8c50cd46b69748624d312922ef881.tar.gz | |
Avoid potential integer overflows and improve consistency. This should
fix bug #13918 "Segfault with precision = MPFR_PREC_MAX on 32-bit".
Note: this problem appeared in MPFR 3.0.0 when the precision type (now
mpfr_prec_t) was changed to a signed integer.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@8025 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'src/get_d.c')
| -rw-r--r-- | src/get_d.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/get_d.c b/src/get_d.c index 49c8a4897..22386ecb8 100644 --- a/src/get_d.c +++ b/src/get_d.c @@ -100,7 +100,7 @@ mpfr_get_d (mpfr_srcptr src, mpfr_rnd_t rnd_mode) nbits += (1021 + e); MPFR_ASSERTD (nbits >= 1); } - np = (nbits + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS; + np = MPFR_PREC2LIMBS (nbits); MPFR_ASSERTD ( np <= MPFR_LIMBS_PER_DOUBLE ); carry = mpfr_round_raw_4 (tp, MPFR_MANT(src), MPFR_PREC(src), negative, nbits, rnd_mode); |