Add to loop size array in data-types.md

[furidosu]

No description provided.

[C3pa]

Suggested change

	For more complex conditions, combine an array to `eof` with a struct containing `if` statements. Using `continue` would move on to the next array item of the loop; using `break` would stop the loop and the growing of the array. See also the [pattern control flow](control-flow.md#pattern-control-flow).
	For more complex conditions, set the array to grow until `eof` with a struct containing `if` statements. Using `continue` will move on to the next array item of the loop; using `break` will stop the loop and the growing of the array. See also the [pattern control flow](control-flow.md#pattern-control-flow).

[C3pa]

I am not sure what you are referring to by "Using continue would move on to the next array item of the loop; using break would stop the loop and the growing of the array."

If I am not mistaken, the following syntax: Command command_list[while(!std::mem::eof())] @ 0x00; doesn't permit using break or continue keywords since you can't specify the loop body.

[paxcut]

Flow control is applied to the structs, not the array so for example you can do

enum Action : u8 {
     Stop,
    Skip,
    Read
};
struct Command {
    Action action;
    if (action == Action::Stop)
          break;
   if (action== Action::Skip)
      continue;
    if (action == Action::Read)
       u8 data[5];
};
Command command_list[while(!std::mem::eof())] @ 0x00;

Maybe the example code should be simpler and better formatted