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OI-codes/utils/size.h

24 lines
430 B
C++

#include <cstddef>
/**
* Get size of the given array.
*
* @param array An array
* @return Size of the array
*/
template <class T, std::size_t N>
constexpr std::size_t size(const T (&array)[N]) noexcept {
return N;
}
/**
* Get size of the given container.
*
* @param c An container
* @return Size of the container
*/
template <class C>
constexpr auto size(const C& c) -> decltype(c.size()) {
return c.size();
}