cpprefjp.github.io/reference/optional/optional at master · cpprefjp/cpprefjp.github.io · GitHub

Sitelet https://github.com/cpprefjp/cpprefjp.github.io/tree/master/reference/optional/optional

Name		Name	Last commit message	Last commit date
parent directory ..
and_then.html		and_then.html
begin.html		begin.html
emplace.html		emplace.html
end.html		end.html
has_value.html		has_value.html
op_arrow.html		op_arrow.html
op_assign.html		op_assign.html
op_bool.html		op_bool.html
op_compare_3way.html		op_compare_3way.html
op_constructor.html		op_constructor.html
op_deduction_guide.html		op_deduction_guide.html
op_deref.html		op_deref.html
op_destructor.html		op_destructor.html
op_equal.html		op_equal.html
op_greater.html		op_greater.html
op_greater_equal.html		op_greater_equal.html
op_less.html		op_less.html
op_less_equal.html		op_less_equal.html
op_not_equal.html		op_not_equal.html
or_else.html		or_else.html
reset.html		reset.html
swap.html		swap.html
swap_free.html		swap_free.html
transform.html		transform.html
value.html		value.html
value_or.html		value_or.html