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// compile
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"reflect"
"unsafe"
)
var slice = []byte{'H', 'e', 'l', 'l', 'o', ','}
func main() {
ptr := uintptr(unsafe.Pointer(&slice)) + 100
header := (*reflect.SliceHeader)(unsafe.Pointer(ptr))
header.Data += 1
fmt.Printf("%d %d\n", cap(slice), header.Cap)
}
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