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| author | Javier Smooth <iamjaviersmooth@gmail.com> | 2015-04-05 04:39:09 -0700 |
|---|---|---|
| committer | Javier Smooth <iamjaviersmooth@gmail.com> | 2015-04-05 04:39:09 -0700 |
| commit | 83ddc942c1629d67b9897ba8be8632035527c6fc (patch) | |
| tree | bf0d8a2e222a0be9fc0184ac1ff97d817e8ee28b /src/cryptonote_core | |
| parent | triangular distribution to choose recent outputs more often for mixins (diff) | |
| download | monero-83ddc942c1629d67b9897ba8be8632035527c6fc.tar.xz | |
handle unlikely rounding up after sqrt
Diffstat (limited to 'src/cryptonote_core')
| -rw-r--r-- | src/cryptonote_core/blockchain_storage.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cryptonote_core/blockchain_storage.cpp b/src/cryptonote_core/blockchain_storage.cpp index a5e19b061..d59fc7a58 100644 --- a/src/cryptonote_core/blockchain_storage.cpp +++ b/src/cryptonote_core/blockchain_storage.cpp @@ -1086,6 +1086,9 @@ bool blockchain_storage::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDO uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53); double frac = std::sqrt((double)r / ((uint64_t)1 << 53)); size_t i = (size_t)(frac*up_index_limit); + // just in case rounding up to 1 occurs after sqrt + if (i == up_index_limit) + --i; if(used.count(i)) continue; bool added = add_out_to_get_random_outs(amount_outs, result_outs, amount, i); |