Bool() allows generating tests with parameters in a set of (false, true). Synopsis: Bool() - returns a generator producing sequences with elements {f

Clears the explanation accumulated so far.

Clears the results of all tests in the given test suite.

Conservative estimate on the lower/upper bound of the number of calls allowed.

We make a copy of expected in case the elements in it are modified after this matcher is created.

Store the streambuf from cout up-front because cout may get redirected when running tests

We need to use cached value referenced by iterator_ because *iterator_ can return a temporary object (and of type other then T), so just having "retur

Deletes self. We deliberately pick an unusual name for this internal method to avoid clashing with names used in user TESTs.