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Martin DisibioandGitHub
9aaf851965
* Upgrade parquet-go to latest for StructTag option * Upgrade parquet-go to get latest alloc fix
20 lines
496 B
Go
20 lines
496 B
Go
package bitpack
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import (
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"unsafe"
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"github.com/parquet-go/bitpack/unsafecast"
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)
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// Pack packs values from src to dst, each value is packed into the given
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// bit width regardless of how many bits are needed to represent it.
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func Pack[T Int](dst []byte, src []T, bitWidth uint) {
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_ = dst[:ByteCount(bitWidth*uint(len(src)))]
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switch unsafe.Sizeof(T(0)) {
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case 4:
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packInt32(dst, unsafecast.Slice[int32](src), bitWidth)
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default:
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packInt64(dst, unsafecast.Slice[int64](src), bitWidth)
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}
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}
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