97 lines
2.0 KiB
C++
97 lines
2.0 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2021 Benoit Pelletier
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#pragma once
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#include "Containers/Queue.h"
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#include "Containers/Array.h"
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template<typename T>
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class TQueueOrStack
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{
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public:
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enum class EMode { QUEUE, STACK };
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TQueueOrStack(EMode _Mode)
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: Mode(_Mode), Queue(), Stack()
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{
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}
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void Push(T& Element)
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{
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switch(Mode)
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{
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case EMode::QUEUE:
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Queue.Enqueue(Element);
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break;
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case EMode::STACK:
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Stack.Push(Element);
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break;
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}
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}
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T Pop()
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{
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check(!IsEmpty());
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T item = T();
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switch(Mode)
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{
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case EMode::QUEUE:
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Queue.Dequeue(item);
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break;
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case EMode::STACK:
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item = Stack.Pop();
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break;
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}
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return item;
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}
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int Num()
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{
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switch(Mode)
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{
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case EMode::QUEUE:
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return Queue.Num();
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case EMode::STACK:
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return Stack.Num();
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}
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}
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bool IsEmpty()
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{
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switch(Mode)
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{
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case EMode::QUEUE:
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return Queue.IsEmpty();
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case EMode::STACK:
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return Stack.Num() <= 0;
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}
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return true;
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}
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private:
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EMode Mode;
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TQueue<T> Queue;
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TArray<T> Stack;
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}; |