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Fix bloom filter warnings, simplify

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This commit is contained in:
Alex Hultman
2022-10-31 22:47:36 +01:00
parent 399204dbae
commit ea7ac520f3
1 changed files with 12 additions and 12 deletions
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src/BloomFilter.h
+12 -12
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@@ -40,10 +40,10 @@ private:
ScrambleArea getFeatures(std::string_view key) { ScrambleArea getFeatures(std::string_view key) {
ScrambleArea s; ScrambleArea s;
s.p[0] = key[0]; s.p[0] = reinterpret_cast<const unsigned char&>(key[0]);
s.p[1] = key[key.length() - 1]; s.p[1] = reinterpret_cast<const unsigned char&>(key[key.length() - 1]);
s.p[2] = key[key.length() - 2]; s.p[2] = reinterpret_cast<const unsigned char&>(key[key.length() - 2]);
s.p[3] = key[key.length() >> 1]; s.p[3] = reinterpret_cast<const unsigned char&>(key[key.length() >> 1]);
return s; return s;
} }
@@ -55,20 +55,20 @@ public:
ScrambleArea s = getFeatures(key); ScrambleArea s = getFeatures(key);
s.val = perfectHash(s.val); s.val = perfectHash(s.val);
return filter.test(s.p[0]) & return filter[s.p[0]] &&
filter.test(s.p[1]) & filter[s.p[1]] &&
filter.test(s.p[2]) & filter[s.p[2]] &&
filter.test(s.p[3]); filter[s.p[3]];
} }
void add(std::string_view key) { void add(std::string_view key) {
if (key.length() >= 2) { if (key.length() >= 2) {
ScrambleArea s = getFeatures(key); ScrambleArea s = getFeatures(key);
s.val = perfectHash(s.val); s.val = perfectHash(s.val);
filter.set(s.p[0]); filter[s.p[0]] = 1;
filter.set(s.p[1]); filter[s.p[1]] = 1;
filter.set(s.p[2]); filter[s.p[2]] = 1;
filter.set(s.p[3]); filter[s.p[3]] = 1;
} }
} }