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// $G $D/$F.go && $L $F.$A && ./$A.out
// Copyright 2009 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
type Element interface {
}
type Vector struct {
nelem int;
elem *[]Element;
}
func New() *Vector {
v := new(Vector);
v.nelem = 0;
v.elem = new([10]Element);
return v;
}
func (v *Vector) At(i int) Element {
return v.elem[i];
}
func (v *Vector) Insert(e Element) {
v.elem[v.nelem] = e;
v.nelem++;
}
type I struct { val int; }; // BUG: can't be local;
func main() {
i0 := new(I); i0.val = 0;
i1 := new(I); i1.val = 11;
i2 := new(I); i2.val = 222;
i3 := new(I); i3.val = 3333;
i4 := new(I); i4.val = 44444;
v := New();
print "hi\n";
v.Insert(i4);
v.Insert(i3);
v.Insert(i2);
v.Insert(i1);
v.Insert(i0);
for i := 0; i < v.nelem; i++ {
var x *I;
x = v.At(i);
print i, " ", x.val, "\n"; // prints correct list
}
for i := 0; i < v.nelem; i++ {
print i, " ", I(v.At(i)).val, "\n"; // always prints 5 - bad code - should be *I()
}
}
/*
bug027.go:50: illegal types for operand
(<Element>I{}) CONV (<I>{})
bug027.go:50: illegal types for operand
(<Element>I{}) CONV (<I>{})
*/
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