cpp.h

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#pragma once
 
namespace eu
{
 
// ------------------------------------------------------------------------------------------------
// std utils
 
// convert an enum class to it's underlying (int) type
// src: https://twitter.com/idoccor/status/1314664849276899328
template<typename E>
constexpr typename std::underlying_type_t<E> base_cast(E e) noexcept
{
    return static_cast<typename std::underlying_type_t<E>>(e);
}
 
template<typename E>
constexpr bool is_flag_set(E var, E flag)
{
    return (base_cast(var) & base_cast(flag)) > 0;
}
 
}  //  namespace eu