std::optional::operator bool, std::optional::has_value
From cppreference.com
| constexpr explicit operator bool() const; |
(since C++17) | |
| constexpr bool has_value() const; |
(since C++17) | |
Checks whether *this contains a value.
Parameters
(none)
Return value
true if *this contains a value, false if *this does not contain a value.
Exceptions
noexcept specification:
noexcept