Feature #4570
Updated by Junxiao Shi over 6 years ago
`Name::getSuccessor` returns the "successor" of a name.
As of ndn-cxx 0.6.1, this is defined as:
```
* The successor of a name is defined as follows:
*
* N represents the set of NDN Names, and X,Y ∈ N.
* Operator < is defined by canonical order on N.
* Y is the successor of X, if (a) X < Y, and (b) ∄ Z ∈ N s.t. X < Z < Y.
*
* In plain words, successor of a name is the same name, but with its last component
* advanced to a next possible value.
*
* Examples:
*
* - successor for / is /%00
* - successor for /%00%01/%01%02 is /%00%01/%01%03
* - successor for /%00%01/%01%FF is /%00%01/%02%00
* - successor for /%00%01/%FF%FF is /%00%01/%00%00%00
```
With ImplicitSha256DigestComponent and typed name components (#4526) in [[nfd:Packet03Transition]], [[Packet03Transition]], the implementation and examples no longer match the definition.
According to the definition,
* successor for `/` is `/sha256digest=00000000000000000000000000000000`.
* successor for `/sha256digest=ffffffffffffffffffffffffffffffff` is `/2=...`.
* all other cases: the last component does not change type.