This change addreses issue #123. The two new optional parameters to `-fixfn' allow the caller to specify a custom equality test function, such as an approximate comparison of floats, and a halt test function, which can trigger a halt to the fixpoint iteration if it fails to converge. The default equality test remains `equal'. The default halt test is a simple counter up to `-fixfn-max-iterations'. The counter is provided by the new function `-counter'. The revised tests illustrate the usage of the new parameters.
defexample entries may now include a symbol `~>' instead of `=>' which uses an approximate comparison instead of `equal' to compare actual and expected floating-point values. Also, for completeness, add support for the `should-error' symbol `!!>' in `examples-to-docs.el'. This is formatted as the comment ";; Error"
This is a port of the CL function `some` and the Scheme function `any` from SRFI-1. It is thought as addition to `-any?` (which returns a boolean) and `-first` (which returns an element). Unlike these it returns the first truthy value of applying the predicate on each list item. Resolves #122.
This change allows tests to be skipped for development purposes by setting the environment variable `ERT_SELECTOR' to a valid ERT test selector, e.g.: ERT_SELECTOR='(not "-fixfn")' ./run-tests.sh Refer to the docstrings for `ert-run-tests-batch-and-exit' and `ert-select-tests' for details on how to compose test selectors.