error - generate a run-time error
void error( string err );
A run-time error 'err' will be generated when error() is called. Exe‐ cution of the current thread will halt, and the trace will be recorded to the debug log. 'err' itself is allowed to have a length of maximal 2045 characters not counting an optional '\n' as last character. Before processing if the error the optional '\n' will be removed, a '*' will be prepended unconditional an '\n' gets appended.
catch(3), throw(3), error_handler(4)