...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Returns the i-th resultset or throws an exception.
resultset_view
at(
std::size_t i) const;
this->has_value()
== true
Strong guranatee. Throws on invalid input.
Type |
Thrown On |
---|---|
|
|
The returned reference and any other references obtained from it are valid
as long as *this
is alive. Move operations invalidate references.
Constant.