Nothing
# ---------------------------------------------------------------------
# clear.R
# METHOD: clear
# clears, rm all key-value pairs from a hash without destroying the
# hash
#
# TODO:
# - for large hashes it might be more efficient to re-initialize the
# slot than rm the keys on the hash.
#
# ---------------------------------------------------------------------
setGeneric( "clear", function(x) standardGeneric("clear") )
setMethod( "clear" , "hash" ,
function(x) rm( list=keys(x), envir=x@.Data )
)
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