core
1.79.0-dev
In core::arch::x86_64
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Function
core
::
arch
::
x86_64
::
_popcnt64
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1.27.0
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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