```
x <- "A test string"
(y <- charToRaw(x))
is.vector(y) # TRUE
rawToChar(y)
rawToChar(y, multiple = TRUE)
(xx <- c(y, charToRaw("&"), charToRaw("more")))
rawToChar(xx)
rawShift(y, 1)
rawShift(y, -2)
rawToBits(y)
showBits <- function(r) stats::symnum(as.logical(rawToBits(r)))
z <- as.raw(5)
z ; showBits(z)
showBits(rawShift(z, 1)) # shift to right
showBits(rawShift(z, 2))
showBits(z)
showBits(rawShift(z, -1)) # shift to left
showBits(rawShift(z, -2)) # ..
showBits(rawShift(z, -3)) # shifted off entirely
```

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