Template Struct OrElseWithValue

Inheritance Relationships

Derived Types

Struct Documentation

template<typename Derived, typename ErrorType>
struct OrElseWithValue

Subclassed by iox::cxx::internal::FunctionalInterfaceImpl< Derived, ValueType, ErrorType >, iox::cxx::internal::FunctionalInterfaceImpl< Derived, void, ErrorType >

Public Types

using or_else_callback_t = cxx::function_ref<void(ErrorType&)>
using const_or_else_callback_t = cxx::function_ref<void(const ErrorType&)>

Public Functions

Derived &or_else(const or_else_callback_t &callable) & noexcept

Calls the provided callable when the object is invalid and provide the underlying error reference as argument to the callable. If the object is valid, nothing happens.

Parameters:

callable – [in] will be called when invalid

Returns:

reference to *this

const Derived &or_else(const const_or_else_callback_t &callable) const & noexcept

Calls the provided callable when the object is invalid and provide the underlying error const reference as argument to the callable. If the object is valid, nothing happens.

Parameters:

callable – [in] will be called when invalid

Returns:

const reference to *this

Derived &&or_else(const or_else_callback_t &callable) && noexcept

Calls the provided callable when the object is invalid and provide the underlying error reference as argument to the callable. If the object is valid, nothing happens.

Parameters:

callable – [in] will be called when invalid

Returns:

rvalue reference to *this

const Derived &&or_else(const const_or_else_callback_t &callable) const && noexcept

Calls the provided callable when the object is invalid and provide the underlying error const reference as argument to the callable. If the object is valid, nothing happens.

Parameters:

callable – [in] will be called when invalid

Returns:

const rvalue reference to *this