as.hexmode(x)
"as.character"(x, ...)
"format"(x, width = NULL, upper.case = FALSE, ...)
"print"(x, ...)"hexmode".NULL or a positive integer specifying the minimum
    field width to be used, with padding by leading zeroes."hexmode" consists of integer vectors with that class
  attribute, used merely to ensure that they are printed in hex.  If width = NULL (the default), the output is padded with
  leading zeroes to the smallest width needed for all the non-missing
  elements.
  as.hexmode can convert integers (of type "integer" or
  "double") and character vectors whose elements contain only
  0-9, a-f, A-F (or are NA) to class
  "hexmode".
  There is a ! method and |, & and
  xor methods: these recycle their arguments to the
  length of the longer and then apply the operators bitwise to each
  element.
octmode, sprintf for other options in
  converting integers to hex, strtoi to convert hex
  strings to integers.