#ifndef CPPCORO_FMAP_HPP_INCLUDED

#define CPPCORO_FMAP_HPP_INCLUDED

#include <utility>

#include <type_traits>

namespace cppcoro

{

template<typename FUNC>

struct fmap_transform

};

template<typename FUNC>

auto fmap(FUNC&& func)

{

return fmap_transform<FUNC>{ std::forward<FUNC>(func) };

}

template<typename T, typename FUNC>

decltype(auto) operator|(T&& value, fmap_transform<FUNC>&& transform)

{

// Use ADL for finding fmap() overload.

return fmap(std::forward<FUNC>(transform.func), std::forward<T>(value));

}

template<typename T, typename FUNC>

decltype(auto) operator|(T&& value, const fmap_transform<FUNC>& transform)

{

// Use ADL for finding fmap() overload.

return fmap(transform.func, std::forward<T>(value));

}

template<typename T, typename FUNC>

decltype(auto) operator|(T&& value, fmap_transform<FUNC>& transform)

{

// Use ADL for finding fmap() overload.

return fmap(transform.func, std::forward<T>(value));

}

}

#endif