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% File src/library/base/man/reg.finalizer.Rd
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% File src/library/base/man/reg.finalizer.Rd
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% Part of the R package, https://www.R-project.org
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2014 R Core Team
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% Copyright 1995-2017 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{reg.finalizer}
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\name{reg.finalizer}
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\alias{reg.finalizer}
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\alias{reg.finalizer}
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\alias{finalizer}
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\alias{finalizer}
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}
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}
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\note{
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\note{
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  \R's interpreter is not re-entrant and the finalizer could be run in
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  \R's interpreter is not re-entrant and the finalizer could be run in
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  the middle of a computation.  So there are many functions which it is
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  the middle of a computation.  So there are many functions which it is
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  potentially unsafe to call from \code{f}: one example which caused
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  potentially unsafe to call from \code{f}: one example which caused
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  trouble is \code{\link{options}}.  As from \R 3.0.3 finalizers are
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  trouble is \code{\link{options}}.  Finalizers are
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  scheduled at garbage collection but only run at a relatively safe time
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  scheduled at garbage collection but only run at a relatively safe time
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  thereafter.
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  thereafter.
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}
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}
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\seealso{
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\seealso{
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  \code{\link{gc}} and \code{\link{Memory}} for garbage collection and
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  \code{\link{gc}} and \code{\link{Memory}} for garbage collection and