// example.go
package main
var gMap = make(map[int]int)
func w() {
temp := make(map[int]int)
temp[1] = 100
temp[2] = 200
gMap = temp // Does the compiler or cpu will reorder temp[1]=100,
temp[2]=200, gMap=temp ??
}
func r() {
local := gMap
println(local[1], local[2])
}
func main() {
go w()
go r()
// ...
}
I have one goroutine to read the map and one goroutine to rewrite the
global map variable does this safe ??
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