Programming puzzles: processing lists!
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04-25-2017, 06:31 PM
Post: #41
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RE: Programming puzzles: processing lists!
(04-25-2017 04:27 PM)DavidM Wrote: @Claudio: does newRPL have a "layer" similar in function to SysRPL? If so, is that how you approach the outer-loop processing of the list commands? No, there's no inner layer per se, but you could think of it as if there is one. Let me clarify that a bit. newRPL basic code is written in C, and presents an API for libraries to use. Those libraries implement the RPL commands basically by doing the dispatch, argument check, then calling the API functions. So you could say that the C code is the inner layer, and the core that presents this API is the "low level". However, there's a huge difference between calling an API and running an RPL loop like in sysRPL. If you want to define the inner layer as having an RPL loop, then there's no inner layer. For the specific case of list processing commands, which need to execute a custom RPL program, there is no other way but to run the RPL loop, so those commands in newRPL are actually implemented in... newRPL (surprise). The outer layer == inner layer in this case. There's no need for an inner layer when the outer layer is quite well optimized. Yes, there's a couple of unnamed (hidden) commands that get most of the job done, and let the loop run for the custom user program, in a sandboxed environment. |
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