icollector.hpp

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#ifndef MSTL_CORE_INTERFACE_ICOLLECTOR_HPP__
#define MSTL_CORE_INTERFACE_ICOLLECTOR_HPP__

 
#include "MSTL/core/algorithm/type_erase.hpp"
#include "MSTL/core/interface/icommon.hpp"
MSTL_BEGIN_NAMESPACE__


template <typename T>
struct icollector : icomparable<T> {
private:
    constexpr const T& derived() const noexcept {
        return static_cast<const T&>(*this);
    }
 
public:
    MSTL_NODISCARD constexpr decltype(auto) size() const
    noexcept(noexcept(derived().size())) {
        return derived().size();
    }

    MSTL_NODISCARD constexpr bool empty() const
    noexcept(noexcept(derived().empty())) {
        return derived().empty();
    }
};
 // CRTPInterfaces
 
MSTL_END_NAMESPACE__
#endif // MSTL_CORE_INTERFACE_ICOLLECTOR_HPP__