Skip to contents

Bitwise Not

Source: R/api.R, R/api-generics.R
nv_not.Rd

Element-wise bitwise NOT – a logical negation on a boolean input, and a bit-by-bit complement on an integer, so nv_not(12L) is -13. You can also use the ! operator, which expects bool inputs.

Usage

nv_not(x)

Arguments

x

(arrayish)
One input. Can be any integerish data type. An R value materializes at its default data type.

Value

(arrayish)
Has the input's shape and data type.

The ! operator

! is logical, like in base R. Unlike base R it only accepts booleans and does not auto-convert non-booleans by comparing them with 0.

See also

prim_not() for the underlying primitive.

Examples

# on a boolean this is a logical negation
x <- nv_array(c(TRUE, FALSE, TRUE))
!x
#> AnvlArray
#>  0
#>  1
#>  0
#> [ CPUbool{3} ] 

# on an integer it complements every bit, so `12L` becomes `-13`
nv_not(nv_array(12L))
#> AnvlArray
#>  -13
#> [ CPUi32{1} ]