I found a really strange issue with GCCGO and I was wondering if someone could explain it.
I'm trying to delete an element from a slice by index using the suggested slice tricks (https://github.com/golang/go/wiki/SliceTricks).
The following code (https://play.golang.org/p/f039m1h7Z1):
package main
import "fmt"
func main() {
xs := []int{0,1,2,3,4}
i := 2
xs, xs[len(xs)-1] = append(xs[:i], xs[i+1:]...), 0
fmt.Println(xs)
}
Works with the go compiler (go run), but when I try to compile it with
gccgo -g -static-libgcc
I get a
panic: runtime error: index out of range
at the line:
xs, xs[len(xs)-1] = append(xs[:i], xs[i+1:]...), 0
Why is this happening?
Note: I'm writing xs[len(xs)-1] = 0
because in my full use case, this is actually a slice of pointers to structs, so according to the slice tricks, I need to make the final pointer null in the old slice to prevent memory leaks.