101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
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/*
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* Copyright (c) 2020-2021 Samsung Electronics Co., Ltd. All rights reserved.
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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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* 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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* 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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#ifndef _TVG_ARRAY_H_
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#define _TVG_ARRAY_H_
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#include <memory.h>
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namespace tvg
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{
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template<class T>
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struct Array
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{
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T* data = nullptr;
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uint32_t count = 0;
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uint32_t reserved = 0;
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void push(T element)
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{
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if (count + 1 > reserved) {
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reserved = (count + 1) * 2;
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data = static_cast<T*>(realloc(data, sizeof(T) * reserved));
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}
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data[count++] = element;
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}
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bool reserve(uint32_t size)
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{
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if (size > reserved) {
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reserved = size;
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data = static_cast<T*>(realloc(data, sizeof(T) * reserved));
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if (!data) return false;
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}
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return true;
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}
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bool grow(uint32_t size)
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{
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return reserve(count + size);
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}
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T* ptr()
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{
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return data + count;
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}
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void pop()
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{
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if (count > 0) --count;
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}
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void reset()
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{
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if (data) {
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free(data);
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data = nullptr;
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}
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count = reserved = 0;
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}
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void clear()
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{
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count = 0;
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}
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void operator=(const Array& rhs)
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{
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reserve(rhs.count);
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if (rhs.count > 0) memcpy(data, rhs.data, sizeof(T) * reserved);
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count = rhs.count;
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}
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~Array()
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{
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if (data) free(data);
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}
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};
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}
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#endif //_TVG_ARRAY_H_
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