Code cleanup & factoring of commands module.
[rpn.git] / src / History.cpp
blobe061b890643bb418f0848cfc587c9bc94b9aa00a
1 /*******************************************************************************
2 * Reverse Polish Notation calculator. *
3 * Copyright (c) 2007-2009, Samuel Fredrickson <kinghajj@gmail.com> *
4 * All rights reserved. *
5 * *
6 * Redistribution and use in source and binary forms, with or without *
7 * modification, are permitted provided that the following conditions are met: *
8 * * Redistributions of source code must retain the above copyright *
9 * notice, this list of conditions and the following disclaimer. *
10 * * Redistributions in binary form must reproduce the above copyright *
11 * notice, this list of conditions and the following disclaimer in the *
12 * documentation and/or other materials provided with the distribution. *
13 * *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS *
15 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED *
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY *
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES *
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR *
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER *
21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT *
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY *
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
24 * DAMAGE. *
25 ******************************************************************************/
27 /*******************************************************************************
28 * History.cpp - functions related to the History stack. *
29 ******************************************************************************/
31 #include "rpn.h"
32 using namespace std;
33 using namespace RPN;
35 History RPN::defaultHistory()
37 History ret;
39 ret.push_front(Stack());
41 return ret;