satcat5::util::optional< T > Struct Template Reference

Detailed Description

template<typename T>
struct satcat5::util::optional< T >

An optional field that may be filled or empty.

Basic implementation of an std::optional equivalent compatible with C++11. ONLY for use by basic types with trivial default constructors and destructors. https://www.club.cc.cmu.edu/%7Eajo/disseminate/2017-02-15-Optional-From-Scratch.pdf

Definition at line 53 of file utils.h.

#include <utils.h>

Inheritance diagram for satcat5::util::optional< T >:

Public Member Functions
constexpr	optional ()
	Create an empty value.
constexpr	optional (const T &t)
	Create a filled value.
void	reset ()
	Reset to the empty state.
optional &	operator= (const T &t)
	Assign a filled value.
T	value () const
	Fetch the inner value.
T	value_or (const T &t) const
	Fetch the inner value if present, or the specified default.
bool	has_value () const
	Is this optional field present?
	operator bool () const
	Is this optional field present?

Private Attributes
T	val_
bool	has_val_

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

• utils.h