| // run -gcflags=-G=3 | |
| // Copyright 2021 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 | |
| //go:noinline | |
| func CopyMap[M interface{ ~map[K]V }, K comparable, V any](m M) M { | |
| out := make(M, len(m)) | |
| for k, v := range m { | |
| out[k] = v | |
| } | |
| return out | |
| } | |
| func main() { | |
| var m map[*string]int | |
| CopyMap(m) | |
| } |