You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.1 KiB
52 lines
1.1 KiB
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file Diff.h
|
|
* @author Gav Wood <i@gavwood.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
namespace dev
|
|
{
|
|
|
|
enum class ExistDiff
|
|
{
|
|
Same,
|
|
New,
|
|
Dead
|
|
};
|
|
|
|
template <class T>
|
|
class Diff
|
|
{
|
|
public:
|
|
Diff() {}
|
|
Diff(T _from, T _to): m_from(_from), m_to(_to) {}
|
|
|
|
T const& from() const { return m_from; }
|
|
T const& to() const { return m_to; }
|
|
|
|
explicit operator bool() const { return m_from != m_to; }
|
|
|
|
private:
|
|
T m_from;
|
|
T m_to;
|
|
};
|
|
|
|
}
|
|
|
|
|