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design by contract tests by assert or by exception?
Is there a rule of thumb to follow when deciding to use exceptions instead of asserts (or vice versa). Right now I do only throw if it's something I think will happen during runtime on the user side (like a socket or file error). Almost everything else I use asserts.
Also, if I were to throw an assert, what is a nice standard object to throw? If I recall correctly there is std::logic_error, but is that not a good object to throw? What would I throw for a missing file or unexpected input (such as from the command line instead of a frontend app)?