std::ispow2

C++

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Defined in header <bit>
template< class T > constexpr bool ispow2(T x) noexcept;		(since C++20)

Checks if x is an integral power of two.

This overload only participates in overload resolution if T is an unsigned integer type (that is, unsigned char, unsigned short, unsigned int, unsigned long, unsigned long long, or an extended unsigned integer type).

Return value

true if x is an integral power of two; otherwise false.