std::expected<T,E>::operator bool, std::expected<T,E>::has_value
From cppreference.com
| constexpr explicit operator bool() const noexcept; |
(1) | (since C++23) |
| constexpr bool has_value() const noexcept; |
(2) | (since C++23) |
Checks whether *this represents an expected value.
Return value
Notes
A std::expected object is never valueless. If has_value() returns true, operator*() can be used to access the expected value; otherwise, error() can be used to access the unexpected value.
Example
| This section is incomplete Reason: no example |
See also
| accesses the expected value (public member function) | |
| returns the unexpected value (public member function) |