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author | Pieter Wuille <pieter.wuille@gmail.com> | 2017-02-17 16:32:16 -0800 |
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committer | Pieter Wuille <pieter.wuille@gmail.com> | 2017-03-29 00:40:17 -0700 |
commit | c21cbe61c6249bcfca098705df6f9b4baab9f296 (patch) | |
tree | ddc52711d82709261d7fdfb541dee9a5f7e76079 /src | |
parent | 4bd0e9b90a39c5c6a016b83882ae44cb4d28f1f8 (diff) | |
download | bitcoin-c21cbe61c6249bcfca098705df6f9b4baab9f296.tar.xz |
Introduce FastRandomContext::randbool()
Diffstat (limited to 'src')
-rw-r--r-- | src/random.h | 4 | ||||
-rw-r--r-- | src/wallet/wallet.cpp | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/src/random.h b/src/random.h index 0464bdce14..82886bec59 100644 --- a/src/random.h +++ b/src/random.h @@ -42,6 +42,10 @@ public: return (Rw << 16) + Rz; } + bool randbool() { + return rand32() & 1; + } + uint32_t Rz; uint32_t Rw; }; diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 39e2ab7c1f..2f9d47aa0f 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2048,7 +2048,7 @@ static void ApproximateBestSubset(const std::vector<std::pair<CAmount, std::pair //that the rng is fast. We do not use a constant random sequence, //because there may be some privacy improvement by making //the selection random. - if (nPass == 0 ? insecure_rand.rand32()&1 : !vfIncluded[i]) + if (nPass == 0 ? insecure_rand.randbool() : !vfIncluded[i]) { nTotal += vValue[i].first; vfIncluded[i] = true; |