And how to interpret the conflicting messages for the following program?
package main
type T int
const N = 1<<12
var i = N - 1
func main() {
var r = make([]T, N) // make([]T, N) does not escape
println(r[i])
var r1 = g() // make([]T, N) does not escape
println(r1[i])
}
func g() []T {
var ts = make([]T, N) // make([]T, N) escapes to heap
return ts
}
On Sunday, May 23, 2021 at 4:51:30 AM UTC-4 [email protected] wrote:
> In the following code, "make([]T, n)" is reported as escaped.
> But does it really always escape at run time?
> Does the report just mean "make([]T, n) possibly escapes to heap"?
>
> package main
>
> type T int
>
> const K = 1<<13
> const N = 1<<12
> var n = N
> var i = n-1
>
> func main() {
> var r = make([]T, N) // make([]T, N) does not escape
> println(r[i])
>
> var r2 = make([]T, n) // make([]T, n) escapes to heap
> println(r2[i])
>
> var r3 = make([]T, K) // make([]T, K) escapes to heap
> println(r3[i])
> }
>
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