Source file test/fixedbugs/issue61187.go

     1  // compile
     2  
     3  // Copyright 2023 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package main
     8  
     9  import (
    10  	"fmt"
    11  	"reflect"
    12  	"unsafe"
    13  )
    14  
    15  var slice = []byte{'H', 'e', 'l', 'l', 'o', ','}
    16  
    17  func main() {
    18  	ptr := uintptr(unsafe.Pointer(&slice)) + 100
    19  	header := (*reflect.SliceHeader)(unsafe.Pointer(ptr))
    20  	header.Data += 1
    21  	fmt.Printf("%d %d\n", cap(slice), header.Cap)
    22  }
    23  

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