mirror of
https://github.com/golang/go
synced 2024-11-07 18:36:21 -07:00
22 lines
407 B
Go
22 lines
407 B
Go
|
// 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)
|
||
|
|
}
|