slice_go120_unsafe.go raw

   1  // Copyright 2023 The gVisor Authors.
   2  //
   3  // Licensed under the Apache License, Version 2.0 (the "License");
   4  // you may not use this file except in compliance with the License.
   5  // You may obtain a copy of the License at
   6  //
   7  //     http://www.apache.org/licenses/LICENSE-2.0
   8  //
   9  // Unless required by applicable law or agreed to in writing, software
  10  // distributed under the License is distributed on an "AS IS" BASIS,
  11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  // See the License for the specific language governing permissions and
  13  // limitations under the License.
  14  
  15  //go:build go1.20
  16  
  17  package gohacks
  18  
  19  import (
  20  	"unsafe"
  21  )
  22  
  23  // Slice returns a slice whose underlying array starts at ptr an which length
  24  // and capacity are len.
  25  //
  26  // Slice is a wrapper around unsafe.Slice. Prefer to use unsafe.Slice directly
  27  // if possible.
  28  func Slice[T any](ptr *T, length int) []T {
  29  	return unsafe.Slice(ptr, length)
  30  }
  31