32 #include <boost/optional.hpp> 43 template<
template<
typename...>
class Monad,
typename... Args,
typename V>
46 return Pure<Monad, Args...> (v);
49 template<
typename MV,
typename F>
54 template<
template<
typename...>
class Monad,
typename... Args1,
typename... Args2>
63 template<
typename T1,
typename T2>
75 template<
typename T1,
typename T2>
82 template<
typename MV,
typename F>
86 "Incompatible function return type");
90 template<
typename MV,
typename F>
93 return Bind (value,
f);
97 auto Do (
const MV& value)
102 template<
typename MV,
typename FHead,
typename... FArgs>
103 auto Do (
const MV& value,
const FHead& fHead,
const FArgs&... fArgs)
105 return Do (
Bind (value, fHead), fArgs...);
constexpr detail::ExprTree< detail::ExprType::LeafStaticPlaceholder, detail::MemberPtrs< Ptr > > f
auto operator>>(const MV &value, const F &f) -> decltype(Bind(value, f))
static BindResult_t< F > Bind(const boost::optional< T > &value, const F &f)
constexpr bool IsCompatibleMonad()
constexpr bool IsCompatibleMonadImpl(const Monad< Args1... > *, const Monad< Args2... > *, int)
typename InstanceMonad< MV >::template BindResult_t< F > BindResult_t
std::result_of_t< F(T)> BindResult_t
constexpr T * declptr() noexcept
BindResult_t< MV, F > Bind(const MV &value, const F &f)