//ww:error "arithmetic on non-numeric type"
package main;
type capture = struct { content: str, start: size, end: size };
type t = struct { pc: size, cap: capture };
fn addcap(ts: *[]t, i: size, src: capture) void = {
	(*ts)[i].cap += src;
};
export fn main() i32 = {
	let ts: []t = [];
	let a: capture = capture { content = "", start = 0, end = 0 };
	addcap(&ts, 0, a);
	return 0;
};