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).
true if x is an integral power of two; otherwise false.
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/numeric/ispow2