popcount_constexpr#

Fully qualified name: carb::cpp::popcount_constexpr

Defined in carb/cpp/Bit.h

template<class T, std::enable_if_t<std::is_unsigned<T>::value, bool> = true>
constexpr int carb::cpp::popcount_constexpr(

T val,

) noexcept#

Returns the number of 1 bits in the value of x.

Note

Unlike popcount(), this function is constexpr as it does not make use of intrinsics. Therefore, at runtime it is recommended to use popcount() instead of this function.

Parameters:

val – [in] The unsigned integer value to test.

Returns:

The number of 1 bits in the value of val.