=over =item %INC X<%INC> The hash %INC contains entries for each filename included via the C, C, or C operators. The key is the filename you specified (with module names converted to pathnames), and the value is the location of the file found. The C operator uses this hash to determine whether a particular file has already been included. If the file was loaded via a hook (e.g. a subroutine reference, see L for a description of these hooks), this hook is by default inserted into %INC in place of a filename. Note, however, that the hook may have set the %INC entry by itself to provide some more specific info. =back