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+argagg is yet another C++ command line argument/option parser. It was
+written as a simple and idiomatic alternative to other frameworks like
+getopt, Boost program options, TCLAP, and others. The goal is to
+achieve the majority of argument parsing needs in a simple manner with
+an easy to use API. It operates as a single pass over all arguments,
+recognizing flags prefixed by - (short) or -- (long) and aggregating
+them into easy to access structures with lots of convenience functions.
+It defers processing types until you access them, so the result
+structures end up just being pointers into the original command line
+argument C-strings.