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LeechCraft 0.6.70-17609-g3dde4097dd
Modular cross-platform feature rich live environment.
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Implementation of the Functor class for std::optional. More...
#include "functor.h"
Public Types | |
template<typename F> | |
using | FmapResult_t = std::optional<detail::WrapVoidResult_t<std::decay_t<std::invoke_result_t<F, T>>>> |
using | UndefinedTag |
Static Public Member Functions | |
template<typename F> | |
static FmapResult_t< F > | Apply (const std::optional< T > &t, const F &f) |
Implementation of the Functor class for std::optional.
The implementation applies the function to the contents of the std::optional if it's not empty, otherwise it just leaves an empty std::optional.
This is analogous to the Maybe type.
T | The element type contained inside the std::optional. |
using LC::Util::InstanceFunctor< std::optional< T > >::FmapResult_t = std::optional<detail::WrapVoidResult_t<std::decay_t<std::invoke_result_t<F, T>>>> |
using LC::Util::InstanceFunctor< T >::UndefinedTag |
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inlinestatic |