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feat(big): add Compare

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fallenoak 2023-01-31 22:34:05 -06:00
parent aad7f751dd
commit e9d3284c70
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3 changed files with 94 additions and 0 deletions
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12
storm/big/Ops.cpp
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@ -22,6 +22,18 @@ void Add(BigBuffer& a, const BigBuffer& b, const BigBuffer& c) {
a.SetCount(i);
}
int32_t Compare(const BigBuffer& a, const BigBuffer& b) {
int32_t result = 0;
for (int32_t i = 0; a.IsUsed(i) || b.IsUsed(i); i++) {
if (a[i] != b[i]) {
result = b[i] < a[i] ? 1 : -1;
}
}
return result;
}
uint32_t ExtractLowPart(uint64_t& value) {
auto low = static_cast<uint32_t>(value);
value >>= 32;