tree 5d1c016734bd59a8c84603279ead1cdc6340475f
parent 6158f4739aafe3b6755b1ef3481a87eb055b73d9
author Junxiao Shi <git@mail1.yoursunny.com> 1502642865 +0000
committer Junxiao Shi <git@mail1.yoursunny.com> 1502642865 +0000

signature: reorganize code

In SignatureInfo, Signature, and its subclasses:

* Improve Doxygen.
* Improve error messages.
* Make comparison operators non-member functions.

refs #4171

Change-Id: I9395a72594702255b41e3700ee145f35fc1a41f2