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string.go
39 lines (35 loc) · 1.19 KB
/
string.go
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// Licensed to ClickHouse, Inc. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. ClickHouse, Inc. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package binary
import (
"reflect"
"unsafe"
)
// Copied from https://github.com/m3db/m3/blob/master/src/x/unsafe/string.go#L62
func unsafeStr2Bytes(str string) []byte {
if len(str) == 0 {
return nil
}
var scratch []byte
{
slice := (*reflect.SliceHeader)(unsafe.Pointer(&scratch))
slice.Len = len(str)
slice.Cap = len(str)
slice.Data = (*reflect.StringHeader)(unsafe.Pointer(&str)).Data
}
return scratch
}