mirror of
https://github.com/featurebasedb/featurebase.git
synced 2026-10-15 07:18:04 +00:00
4c53f86e82
i used this script, a little clunky but it got the job done
```bash
for file in `find . -type f -print | grep '\.go'`; do
sed '1,/^\/\/ limitations under the License.$/d' $file > $file.tmp;
result=`cat $file.tmp`
if [[ result != "" ]]; then
gofmt $file.tmp &> /dev/null;
if [[ $? == 0 ]]; then
mv $file.tmp $file && gofmt -w $file;
else
rm $file.tmp;
fi
else
rm $file.tmp;
fi
done
```
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package rbf
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import (
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"unsafe"
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"github.com/molecula/featurebase/v2/roaring"
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)
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// toArray16 converts a byte slice into a slice of uint16 values using unsafe.
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func toArray16(a []byte) []uint16 {
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return (*[4096]uint16)(unsafe.Pointer(&a[0]))[: len(a)/2 : len(a)/2]
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}
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// fromArray16 converts a slice of uint16 values into a byte slice using unsafe.
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func fromArray16(a []uint16) []byte {
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return (*[8192]byte)(unsafe.Pointer(&a[0]))[: len(a)*2 : len(a)*2]
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}
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/* lint
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func cloneArray16(a []uint16) []uint16 {
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other := make([]uint16, len(a))
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copy(other, a)
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return other
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}
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*/
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// arrayIndex returns the insertion index of v in a. Returns true if exact match.
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func arrayIndex(a []uint16, v uint16) (int, bool) {
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return search(len(a), func(i int) int {
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if a[i] == v {
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return 0
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} else if v < a[i] {
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return -1
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}
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return 1
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})
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}
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// toArray64 converts a byte slice into a slice of uint64 values using unsafe.
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func toArray64(a []byte) []uint64 {
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return (*[1024]uint64)(unsafe.Pointer(&a[0]))[:1024:1024]
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}
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// fromArray64 converts a slice of uint64 values into a byte slice using unsafe.
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func fromArray64(a []uint64) []byte {
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return (*[8192]byte)(unsafe.Pointer(&a[0]))[:8192:8192]
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}
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func cloneArray64(a []uint64) []uint64 {
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other := make([]uint64, len(a))
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copy(other, a)
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return other
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}
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// toArray16 converts a byte slice into a slice of uint16 values using unsafe.
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func toInterval16(a []byte) []roaring.Interval16 {
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return (*[2048]roaring.Interval16)(unsafe.Pointer(&a[0]))[: len(a)/4 : len(a)/4]
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}
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// fromArray16 converts a slice of uint16 values into a byte slice using unsafe.
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func fromInterval16(a []roaring.Interval16) []byte {
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return (*[8192]byte)(unsafe.Pointer(&a[0]))[: len(a)*4 : len(a)*4]
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}
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/* lint
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func cloneInterval16(a []roaring.Interval16) []roaring.Interval16 {
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other := make([]roaring.Interval16, len(a))
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copy(other, a)
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return other
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}
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*/
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