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comparison deps/Platinum/ThirdParty/Neptune/Source/Core/NptStack.h @ 0:3425707ddbf6

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Initial import (hopefully this mercurial stuff works...)
author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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-1:000000000000 0:3425707ddbf6
1 /*****************************************************************
2 |
3 | Neptune - Stack
4 |
5 | Copyright (c) 2002-2008, Axiomatic Systems, LLC.
6 | All rights reserved.
7 |
8 | Redistribution and use in source and binary forms, with or without
9 | modification, are permitted provided that the following conditions are met:
10 | * Redistributions of source code must retain the above copyright
11 | notice, this list of conditions and the following disclaimer.
12 | * Redistributions in binary form must reproduce the above copyright
13 | notice, this list of conditions and the following disclaimer in the
14 | documentation and/or other materials provided with the distribution.
15 | * Neither the name of Axiomatic Systems nor the
16 | names of its contributors may be used to endorse or promote products
17 | derived from this software without specific prior written permission.
18 |
19 | THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
20 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 | DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
23 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 |
30 ****************************************************************/
31
32 #ifndef _NPT_STACK_H_
33 #define _NPT_STACK_H_
34
35 /*----------------------------------------------------------------------
36 | includes
37 +---------------------------------------------------------------------*/
38 #include "NptResults.h"
39 #include "NptTypes.h"
40 #include "NptList.h"
41
42 /*----------------------------------------------------------------------
43 | NPT_Stack
44 +---------------------------------------------------------------------*/
45 template <typename T>
46 class NPT_Stack : public NPT_List<T>
47 {
48 public:
49 // methods
50 NPT_Result Push(const T& value) {
51 return Add(value);
52 }
53
54 NPT_Result Peek(T& value) {
55 // NOTE: we must use the this-> accessor here because the standard
56 // requires it when the member to look up is in a parent template
57 if (this->m_ItemCount == 0) return NPT_ERROR_NO_SUCH_ITEM;
58 value = this->m_Tail->m_Data;
59 return NPT_SUCCESS;
60 }
61
62 NPT_Result Pop(T& value) {
63 // NOTE: we must use the this-> accessor here because the standard
64 // requires it when the member to look up is in a parent template
65 if (this->m_ItemCount == 0) return NPT_ERROR_NO_SUCH_ITEM;
66 typename NPT_List<T>::Iterator tail = this->GetLastItem();
67 value = *tail;
68 return this->Erase(tail);
69 }
70 };
71
72 #endif // _NPT_STACK_H_