32 #include <boost/optional.hpp> 39 template<
typename Applicative>
42 template<
typename AF,
typename AV>
45 template<
template<
typename...>
class Applicative,
typename... Args,
typename T>
46 Applicative<Args..., T>
Pure (
const T& v)
51 template<
typename Applicative,
typename T>
57 template<
typename AF,
typename AV>
63 template<
typename AF,
typename AV>
64 auto operator* (
const AF& af,
const AV& av) -> decltype (
GSL (af, av))
79 struct GSLResult<boost::optional<V>>
81 using Type_t = boost::optional<ResultOf_t<T (V)>>;
85 static boost::optional<U>
Pure (
const U& v)
auto operator*(const AF &af, const AV &av) -> decltype(GSL(af, av))
boost::optional< ResultOf_t< T(V)>> Type_t
GSLResult_t< AF, AV > GSL(const AF &af, const AV &av)
static boost::optional< U > Pure(const U &v)
Applicative< Args..., T > Pure(const T &v)
typename InstanceApplicative< AF >::template GSLResult< AV >::Type_t GSLResult_t
auto Pure(const T &v) -> decltype(InstanceApplicative< Applicative >::Pure(v))
boost::optional< T > Type_t
static GSLResult_t< Type_t, AV > GSL(const Type_t &f, const AV &v)