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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
import "fmt"
type Buffer int
func (*Buffer) Read() {
}
type Reader interface { Read() }
func f() *Buffer {
return nil
}
func g() Reader {
// implicit interface conversion in assignment during return
return f()
}
func h() (b *Buffer, ok bool) {
return
}
func i() (r Reader, ok bool) {
// implicit interface conversion in multi-assignment during return
return h();
}
func fmter() (s string, i int, t string) {
return "%#x %q", 100, "hello"
}
func main() {
b := g();
bb, ok := b.(*Buffer);
_, _, _ = b, bb, ok;
b, ok = i();
bb, ok = b.(*Buffer);
_, _, _ = b, bb, ok;
s := fmt.Sprintf(fmter());
if s != "0x64 \"hello\"" {
panicln(s);
}
}
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