diff options
Diffstat (limited to 'Build/source/libs/mpfr/mpfr-src/src/extract.c')
-rw-r--r-- | Build/source/libs/mpfr/mpfr-src/src/extract.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/Build/source/libs/mpfr/mpfr-src/src/extract.c b/Build/source/libs/mpfr/mpfr-src/src/extract.c index 9dd58da377a..b3a56ffab3d 100644 --- a/Build/source/libs/mpfr/mpfr-src/src/extract.c +++ b/Build/source/libs/mpfr/mpfr-src/src/extract.c @@ -37,19 +37,21 @@ mpfr_extract (mpz_ptr y, mpfr_srcptr p, unsigned int i) unsigned long two_i_2 = i ? two_i / 2 : 1; mp_size_t size_p = MPFR_LIMB_SIZE (p); + MPFR_ASSERTN (two_i != 0 && two_i_2 <= INT_MAX); /* overflow check */ + /* as 0 <= |p| < 1, we don't have to care with infinities, NaN, ... */ MPFR_ASSERTD (!MPFR_IS_SINGULAR (p)); - _mpz_realloc (y, two_i_2); - if ((mpfr_uexp_t) size_p < two_i) + mpz_realloc2 (y, (mp_bitcnt_t) two_i_2 * GMP_NUMB_BITS); + if (size_p < two_i) { MPN_ZERO (PTR(y), two_i_2); - if ((mpfr_uexp_t) size_p >= two_i_2) - MPN_COPY (PTR(y) + two_i - size_p, MPFR_MANT(p), size_p - two_i_2); + if (size_p >= two_i_2) + MPN_COPY (PTR(y) + (two_i - size_p), MPFR_MANT(p), size_p - two_i_2); } else MPN_COPY (PTR(y), MPFR_MANT(p) + size_p - two_i, two_i_2); MPN_NORMALIZE (PTR(y), two_i_2); - SIZ(y) = (MPFR_IS_NEG (p)) ? -two_i_2 : two_i_2; + SIZ(y) = MPFR_IS_NEG (p) ? - (int) two_i_2 : (int) two_i_2; } |