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// compile
// Copyright 2023 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
func f() {
F([]int{}, func(*int) bool { return true })
}
func F[S []E, E any](a S, fn func(*E) bool) {
for _, v := range a {
G(a, func(e E) bool { return fn(&v) })
}
}
func G[E any](s []E, f func(E) bool) int {
for i, v := range s {
if f(v) {
return i
}
}
return -1
}
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