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85 lines
1.2 KiB
85 lines
1.2 KiB
4 months ago
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// run
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import "fmt"
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type Element interface {
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}
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type Vector struct {
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nelem int
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elem []Element
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}
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func New() *Vector {
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v := new(Vector)
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v.nelem = 0
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v.elem = make([]Element, 10)
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return v
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}
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func (v *Vector) At(i int) Element {
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return v.elem[i]
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}
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func (v *Vector) Insert(e Element) {
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v.elem[v.nelem] = e
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v.nelem++
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}
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func main() {
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type I struct{ val int }
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i0 := new(I)
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i0.val = 0
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i1 := new(I)
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i1.val = 11
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i2 := new(I)
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i2.val = 222
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i3 := new(I)
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i3.val = 3333
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i4 := new(I)
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i4.val = 44444
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v := New()
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r := "hi\n"
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v.Insert(i4)
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v.Insert(i3)
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v.Insert(i2)
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v.Insert(i1)
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v.Insert(i0)
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for i := 0; i < v.nelem; i++ {
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var x *I
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x = v.At(i).(*I)
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r += fmt.Sprintln(i, x.val) // prints correct list
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}
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for i := 0; i < v.nelem; i++ {
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r += fmt.Sprintln(i, v.At(i).(*I).val)
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}
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expect := `hi
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0 44444
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1 3333
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2 222
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3 11
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4 0
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0 44444
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1 3333
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2 222
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3 11
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4 0
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`
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if r != expect {
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panic(r)
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}
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}
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/*
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bug027.go:50: illegal types for operand
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(<Element>I{}) CONV (<I>{})
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bug027.go:50: illegal types for operand
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(<Element>I{}) CONV (<I>{})
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*/
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