Parsing a string with inline C

@user113695 it is contiguous. I tested it myself. I think your mistake is coming from this part:

var nlines = c.sum(fb.length, E.getAddressOf(E.toString(fb),true));

Try this instead:

var flatstring = E.toString(fb);
var nlines = c.sum(fb.length, E.getAddressOf(flatstring,true));

Not exactly sure why your version doesn't work, will look into it.