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// run
// Copyright 2022 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 "math"
func checkClearSlice() {
s := []int{1, 2, 3}
clear(s)
for i := range s {
if s[i] != 0 {
panic("clear not zeroing slice elem")
}
}
clear([]int{})
}
func checkClearMap() {
m1 := make(map[int]int)
m1[0] = 0
m1[1] = 1
clear(m1)
if len(m1) != 0 {
panic("m1 is not cleared")
}
// map contains NaN keys is also cleared.
m2 := make(map[float64]int)
m2[math.NaN()] = 1
m2[math.NaN()] = 1
clear(m2)
if len(m2) != 0 {
panic("m2 is not cleared")
}
clear(map[int]int{})
}
func main() {
checkClearSlice()
checkClearMap()
}
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