| // Copyright 2020 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 p | |
| type Number interface { | |
| int /* ERROR int is not an interface */ | |
| float64 /* ERROR float64 is not an interface */ | |
| } | |
| func Add[T Number](a, b T) T { | |
| return a /* ERROR not defined */ + b | |
| } |