43 lines
671 B
C++
43 lines
671 B
C++
#pragma once
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#include <cstdlib>
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#include <stdexcept>
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template<class T>
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class Vector
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{
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private:
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T * data;
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std::size_t size;
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public:
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void Resize(std::size_t const newSize)
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{
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void * result = std::realloc(data, newSize * sizeof(T));
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if(result == nullptr)
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{
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throw std::runtime_error("Cannot allocate the requested size of memory.");
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}
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size = newSize;
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data = reinterpret_cast<T *>(result);
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}
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T & operator[](std::size_t const index)
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{
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if(index >= size)
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{
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throw std::out_of_range("Index is greater or equal to size.");
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}
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return data[index];
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}
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std::size_t GetSize() const
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{
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return size;
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}
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Vector()
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: data(nullptr),
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size(0U)
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{}
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}; |