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38 lines
1.0 KiB
38 lines
1.0 KiB
/*
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* Minio Cloud Storage, (C) 2019 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package encoding
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import (
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"github.com/minio/minio/pkg/s3select/internal/parquet-go/common"
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)
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// Refer https://en.wikipedia.org/wiki/LEB128#Unsigned_LEB128
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func varIntEncode(ui64 uint64) []byte {
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if ui64 == 0 {
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return []byte{0}
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}
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length := int(common.BitWidth(ui64)+6) / 7
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data := make([]byte, length)
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for i := 0; i < length; i++ {
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data[i] = byte(ui64&0x7F) | 0x80
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ui64 >>= 7
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}
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data[length-1] &= 0x7F
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return data
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}
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