check: Check (C Unit Test Framework) check: check: Check is a unit test framework for C. It features a simple interface check: for defining unit tests, putting little in the way of the developer check: Tests are run in a separate address space, so Check can catch both check: assertion failures and code errors that cause segmentation faults or check: other signals. The output from unit tests can be used within source check: code editors and IDEs. check: check: check: