core
1.77.0
(aedd173a2 2024-03-17)
In core::arch::x86_64
?
Function
core
::
arch
::
x86_64
::
_popcnt64
1.27.0
·
source
·
[
−
]
pub unsafe fn _popcnt64(x:
i64
) ->
i32
Available on
x86-64 and target feature
popcnt
only.
Expand description
Counts the bits that are set.
Intel’s documentation