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...

Done, thanks. Here's the next batch: unsigned vs. signed comparisons:

I'm still seeing the last of those, repeated below. John, compiling the files a Jens suggests will probably not reveal most problems in templates that are not instantiated. If your tests instantiate everything, then compiling them might. /usr/local/src/boost-logging/boost/logging/format/destination/rolling_file.hpp:131: warning: comparison between signed and unsigned integer expressions Phil.