Count the number of set bits in a value. Ex. popcount(0xF000F000) = 8 Returns 0 if Value is zero.
Synopsis
Declared in <llvm/ADT/bit.h>
template<typename T>
[[nodiscard]]
constexpr
int
popcount(T Value) noexcept;Return Value
Number of set bits in Value, or 0 if Value is zero.
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Note
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The return value should not be discarded. |
Parameters
Name |
Description |
Value |
Unsigned value whose set bits are counted. |
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