ember walrus
I would like to have a confirmation about my understanding of slices. Given I pass a slice of struct instances to a function like this:
fn someFunc(f: []Foo) void {}
Inside of that function I can e.g. sort the instances of Foo or change the contents of any Foo in that slice.
But! If I store "f" inside of this function to another, let's say global struct instance as a variable, I actually store a temprorary stack version of that slice (ptr) instead of the "real" one, right?
dusty seal
you mean something like this?
var global_f: []Foo = undefined;
fn someFunc(f: []Foo) void {
global_f = f;
}
yes, exactly
ember walrus
hmm...so the one in global_f should be and stay correct?
dusty seal
global_f will have the same pointer, so it's valid as long as f is valid
or at least as long as f.ptr at the time the function was called is valid
ember walrus
ok...well, you destroyed a hope but helped very much here, thanks for that! Again a difference to how Go treats stuff.