Get physical length of an ff or ram object

maxlength returns the physical length of an ff or ram object

maxlength(x, ...)
# S3 method for class 'ff'
maxlength(x, ...)
# Default S3 method
maxlength(x, ...)

Arguments

x

ff or ram object

...

additional arguments (not used)

Value

integer scalar

Author

Jens Oehlschlägel

See also

length.ff, maxindex

Examples

  x <- ff(1:12)
  length(x) <- 10
  length(x)
#> [1] 10
  maxlength(x)
#> [1] 10
  x
#> ff (open) integer length=10 (10)
#>  [1]  [2]  [3]  [4]  [5]       [6]  [7]  [8]  [9] [10] 
#>    1    2    3    4    5    :    6    7    8    9   10 
  rm(x); gc()
#>           used (Mb) gc trigger  (Mb) max used  (Mb)
#> Ncells 1160930 62.1    1994352 106.6  1994352 106.6
#> Vcells 2162880 16.6    8790397  67.1  8790397  67.1