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| author | Marco Bodrato <bodrato@mail.dm.unipi.it> | 2020-03-15 18:26:21 +0100 |
|---|---|---|
| committer | Marco Bodrato <bodrato@mail.dm.unipi.it> | 2020-03-15 18:26:21 +0100 |
| commit | c07e396277eab29d644a37f02b2fdcfbc4b68b1c (patch) | |
| tree | 7c9f4e07a59b64247cfcd6608376bde5de5a7b5b /primesieve.c | |
| parent | 12d31d5fab8cce52120519328f844f7f5536c0c3 (diff) | |
| download | gmp-c07e396277eab29d644a37f02b2fdcfbc4b68b1c.tar.gz | |
: Use one less variable to loop on primes.
Diffstat (limited to 'primesieve.c')
| -rw-r--r-- | primesieve.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/primesieve.c b/primesieve.c index 8aa8b7ed2..279e8d367 100644 --- a/primesieve.c +++ b/primesieve.c @@ -313,7 +313,7 @@ block_resieve (mp_ptr bit_array, mp_size_t limbs, mp_limb_t offset, mp_srcptr sieve) { mp_size_t bits, off = offset; - mp_limb_t mask, index, i; + mp_limb_t mask, i; ASSERT (limbs > 0); ASSERT (offset >= GMP_LIMB_BITS); @@ -325,10 +325,9 @@ block_resieve (mp_ptr bit_array, mp_size_t limbs, mp_limb_t offset, ASSERT (i < GMP_LIMB_BITS); mask = CNST_LIMB(1) << i; - index = 0; do { ++i; - if ((sieve[index] & mask) == 0) + if ((*sieve & mask) == 0) { mp_size_t step, lindex; mp_limb_t lmask; @@ -371,7 +370,7 @@ block_resieve (mp_ptr bit_array, mp_size_t limbs, mp_limb_t offset, }; } mask = mask << 1 | mask >> (GMP_LIMB_BITS-1); - index += mask & 1; + sieve += mask & 1; } while (1); } |