kismpl::detail::fold_optional_impl< Fun, T > Struct Template Reference

#include <KisMpl.h>

Public Member Functions
std::optional< T >	fold (const std::optional< T > &first)
std::optional< T >	fold (const std::optional< T > &first, const std::optional< T > &second)
template<typename... Rest>
std::optional< T >	fold (const std::optional< T > &first, std::optional< T > const &second, const std::optional< Rest > &...rest)

Public Attributes
const Fun	m_fun

Detailed Description

template<typename Fun, typename T>
struct kismpl::detail::fold_optional_impl< Fun, T >

Definition at line 105 of file KisMpl.h.

Member Function Documentation

fold() [1/3]

template<typename Fun , typename T >

std::optional< T > kismpl::detail::fold_optional_impl< Fun, T >::fold ( const std::optional< T > & first )

inline

Definition at line 106 of file KisMpl.h.

                                                     {
        return first;
    }

fold() [2/3]

template<typename Fun , typename T >

std::optional< T > kismpl::detail::fold_optional_impl< Fun, T >::fold ( const std::optional< T > & first, const std::optional< T > & second )

inline

Definition at line 110 of file KisMpl.h.

                                                                                   {
        if (first && second) {
            return m_fun(*first, *second);
        } else if (first) {
            return first;
        } else {
            return second;
        }
    }

References kismpl::detail::fold_optional_impl< Fun, T >::m_fun.

fold() [3/3]

template<typename Fun , typename T >

template<typename... Rest>

std::optional< T > kismpl::detail::fold_optional_impl< Fun, T >::fold ( const std::optional< T > & first, std::optional< T > const & second, const std::optional< Rest > &... rest )

inline

Definition at line 121 of file KisMpl.h.

                                                                                                                     {
        return fold(fold(first, second), rest...);
    }

References kismpl::detail::fold_optional_impl< Fun, T >::fold().

Member Data Documentation

m_fun

template<typename Fun , typename T >

const Fun kismpl::detail::fold_optional_impl< Fun, T >::m_fun

Definition at line 125 of file KisMpl.h.

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The documentation for this struct was generated from the following file:

• libs/global/KisMpl.h