Dave Aronson's C++ Units of Measure

This is a set of classes (and objects and sample programs) in C++, aimed at preventing programming errors that result from mismatched units of measure. The best-known recent example would be the Mars Lander crash, blamed on mixing metric and so-called "English" units. Using this library, that would have thrown an exception, so the error would have been much easier to catch in testing. Files include:

• measure.hpp (declaration of Measure class)
• measure.cpp (implementation of Measure class)
• measuredefs.hpp (declaration of some built-in Measures)
• unit.hpp (declaration of Unit class)
• unit.cpp (implementation of Unit class)
• unitdefs.hpp (declaration of some built-in Units)
• Makefile (if you have use for this you know what it is)
• test.cpp (was some tests; now just dumps the units)
• cvtunits.cpp (sample program; converts between feet/meters and slugs/kilos)
• falldist.cpp (sample program; tells how far something falls in N seconds)
• falltime.cpp (sample program; tells how long it takes something to fall N meters)
• measure.txt (main documentation)
• api.txt (API documentation)

If you have any questions, feel free to email me.

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