go adder 源码
golang adder 代码
文件路径：/test/typeparam/adder.go
// run
// 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
import (
"fmt"
)
type AddType interface {
int | int64 | string
}
// Add can add numbers or strings
func Add[T AddType](a, b T) T {
return a + b
}
func main() {
if got, want := Add(5, 3), 8; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
if got, want := Add("ab", "cd"), "abcd"; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
}
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