boost::openmethod::policies::default_error_handler

Declared in <boost/openmethod/policies/default_error_handler.hpp>

Wraps the error in a std::variant, and calls a std::function with it. The function object is initialized to a function (default_handler) that writes a description of the error, using the output policy, if it is available in the registry.

This is the error handler used by the default registry. In debug variants, it writes an error message to stderr, then returns. In release variants, no message is emitted. Any call by the library to the error policy is immediately followed by a call to abort.

By default, the library is exception‐agnostic: it is exception‐safe, but it does not throw exceptions by itself. The program may replace the default handler with a function that throws an exception, possibly preventing program termination. The throw_error_handler policy can also be used to enable exception throwing on a registry basis.

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