// run
package main
import "runtime/debug"
func f(m map[int]*string, i int) {
s := ""
m[i] = &s
}
func main() {
debug.SetGCPercent(0)
m := map[int]*string{}
for i := 0; i < 40; i++ {
f(m, i)
if len(*m[i]) != 0 {
println("bad length", i, m[i], len(*m[i]))
panic("bad length")
}
}
}