6cc49c1c62
Motivation: Cursors are better than iterators in that they only need to check boundary conditions once per iteration, when processed in a loop. This should make them easier for the compiler to optimise. Modification: Change the ByteIterator to a ByteCursor. The API is almost the same, but with a few subtle differences in semantics. The primary difference is that the cursor movement and boundary condition checking and position movement happen at the same time, and do not need to occur when the values are fetched out of the cursor. An iterator, on the other hand, needs to throw an exception if "next" is called too many times. Result: Simpler code, and hopefully faster code as well. |
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