diff options
| 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/setmax.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/setmax.c')
| -rw-r--r-- | src/setmax.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/setmax.c b/src/setmax.c index 6c41e0e26..f9a77da8d 100644 --- a/src/setmax.c +++ b/src/setmax.c @@ -32,7 +32,7 @@ mpfr_setmax (mpfr_ptr x, mpfr_exp_t e) mp_limb_t *xp; MPFR_SET_EXP (x, e); - xn = 1 + (MPFR_PREC(x) - 1) / GMP_NUMB_BITS; + xn = MPFR_LIMB_SIZE (x); sh = (mpfr_prec_t) xn * GMP_NUMB_BITS - MPFR_PREC(x); xp = MPFR_MANT(x); xp[0] = MP_LIMB_T_MAX << sh; |