"in depth" is probably correct, but "fast" depends. I tend to classify libraries into two classes, something I can obviously make but I don't have to, and some

"in depth" is probably correct, but "fast" depends. I tend to classify libraries into two classes, something I can obviously make but I don't have to, and something I would have to try hard (or even be impossible) to make it. You can't quickly understand the second class of libraries by reading the code. If you need a concrete example, take miniSAT [1] as one. [1] https://github.com/niklasso/minisat/blob/master/minisat/core/Solver.cc https://github.com/niklasso/minisat/blob/master/minisat/core...