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// 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"
"strconv"
)
func test1[T any](fn func(T) int, v T) int {
fn1 := func() int {
var i interface{} = v
val := fn(i.(T))
return val
}
return fn1()
}
func main() {
want := 123
got := test1(func(s string) int {
r, err := strconv.Atoi(s)
if err != nil {
return 0
}
return r
}, "123")
if got != want {
panic(fmt.Sprintf("got %f, want %f", got, want))
}
}
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