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hpp v0.3 Release Notes

  • Switch to a stream processing model.

    This library is designed to have minimal dependencies, so we now have a bespoke implementation of a cross between the pipes and machines libraries included.

    📜 This change was done to make some parsing operations easier, believe it or not. For example, most pre-processing 👍 is done on a line-by-line basis, but we must also support macro function applications that cross line boundaries. Thus the expansion logic can not merely be given one line at a time from an input file. Previously, a heuristic tried to combine consecutive lines 📜 before the parsing stage. Now, the parser itself is able to pull tokens in across lines when necessary.

    TL;DR: The upshot is that processing /usr/include/stdio.h on OS X (a surprisingly complicated file!) now uses 78% of the time and 0.38% the memory of previous versions of hpp.