Платформа ЦРНП "Мирокод" для разработки проектов
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45 lines
750 B
45 lines
750 B
// +build go1.9 |
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package bitset |
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import "math/bits" |
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func popcntSlice(s []uint64) uint64 { |
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var cnt int |
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for _, x := range s { |
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cnt += bits.OnesCount64(x) |
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} |
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return uint64(cnt) |
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} |
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func popcntMaskSlice(s, m []uint64) uint64 { |
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var cnt int |
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for i := range s { |
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cnt += bits.OnesCount64(s[i] &^ m[i]) |
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} |
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return uint64(cnt) |
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} |
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func popcntAndSlice(s, m []uint64) uint64 { |
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var cnt int |
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for i := range s { |
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cnt += bits.OnesCount64(s[i] & m[i]) |
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} |
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return uint64(cnt) |
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} |
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func popcntOrSlice(s, m []uint64) uint64 { |
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var cnt int |
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for i := range s { |
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cnt += bits.OnesCount64(s[i] | m[i]) |
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} |
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return uint64(cnt) |
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} |
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func popcntXorSlice(s, m []uint64) uint64 { |
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var cnt int |
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for i := range s { |
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cnt += bits.OnesCount64(s[i] ^ m[i]) |
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} |
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return uint64(cnt) |
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}
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