Pippijn van Steenhoven

I doubt, therefore I might be

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Iterators

Add built-in support for iterators. We could use C++-style iterators:

let i = string_iterator ("hello");
while (i) {       // conversion to bool acts like hasNext
   putchar (*i);  // * operator yields the current item
   ++i;           // perhaps, similar to C++ iterators,
                  // skips to the next element
   i += 2;        // skips 2 elements
}

The decrement and subtraction operators can be implemented analogically.

Or we could take some ideas from the Sather programming language.

while {
   let c = string_iterator! ("hello");
   putchar (c);
}

In this example, incrementing or decrementing the iterator is not possible. Maybe we don't need that. How to do this in Sather? This needs some thought.