On Fri, Mar 13, 2020 at 04:02:44PM -0500, Lawrence Bottorff wrote: > Could you point me to a beginner's treatment of this topic, especially an > example of a graph database, and what exactly a picolisp pointer is?
Perhaps this helps? https://software-lab.de/doc/tut.html#ext It is really very simple. > I'm afraid I don't even know what you mean by a pointer in this context. I > know from C what a pointer is, but a picolisp pointer is beyond my > comprehension. Exactly the same as C pointers. The 32-bit version of PicoLisp *is* even written in C. The external symbols *point* to each other when loaded inte memory, via properties or arbitrary Lisp structures. And they are loaded *into* memory on demand, implicitly when they are accessed (lazy loading). The higher DB levels then implement entity and relation classes, B-Trees etc., all on top of external symbols. ☺/ A!ex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
