Description Objects from the Class Slots Extends Methods
These classes need to be accessible for the C code to work but are not used directly by the R user.
Created internally by C code and non-exported R functions.
ref
:Object of class "externalptr"
the
reference to the C-level structure.
classes
:Object of class "character"
the names of the C++ classes which such objects can be
legitimate members. This is checked when passing an R object
to a C/C++ routine.
Class "RC++Reference"
, directly.
No methods defined with class "unzFileRef" in the signature.
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