Generate "deltas", which are code-coverage-data objects with information for a period.
A code-coverage-data object.
get-code-coverage-delta returns a code-coverage-data object with information covering the period since the previous snapshot, and with name name. Normally this would be set by
get-code-coverage-delta with snapshot non-nil. If there was no such previous call, then the "delta" period commences, for each file, from the time it was loaded.
When snapshot is non-nil,
get-code-coverage-delta sets up a new snapshot. This is more efficient than using
set-code-coverage-snapshot again, but otherwise has the same effect. The default value of snapshot is
LispWorks User Guide and Reference Manual - 13 Feb 2015