std::ispow2
Defined in header <bit> | ||
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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.
Example
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