Component-private base holding a pair's first member by lvalue reference.
This component-private class holds the first data member of a pair when that member is an lvalue-reference. Note that the C++ Standard defines the assignment operator to assign through the reference in this case, where the implicitly declared assignment operator would be deleted.
| Name | Description |
|---|---|
Pair_First [constructor] | Constructors |
operator= | Assign through the first reference from rhs.first. |
| Name | Description |
|---|---|
first | The first element of the pair, held by lvalue reference. |