1 // Copyright 2020 The Go Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style

     3 // license that can be found in the LICENSE file.

     4 

     5 // Package unsafeheader contains header declarations for the Go runtime's

     6 // slice and string implementations.

     7 //

     8 // This package allows x/sys to use types equivalent to

     9 // reflect.SliceHeader and reflect.StringHeader without introducing

    10 // a dependency on the (relatively heavy) "reflect" package.

    11 package unsafeheader

    12 

    13 import (

    14 	"unsafe"

    15 )

    16 

    17 // Slice is the runtime representation of a slice.

    18 // It cannot be used safely or portably and its representation may change in a later release.

    19 type Slice struct {

    20 	Data unsafe.Pointer

    21 	Len  int

    22 	Cap  int

    23 }

    24 

    25 // String is the runtime representation of a string.

    26 // It cannot be used safely or portably and its representation may change in a later release.

    27 type String struct {

    28 	Data unsafe.Pointer

    29 	Len  int

    30 }