46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
#pragma once
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namespace HLSLcc
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{
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// A vector that automatically grows when written to, fills the intermediate ones with default value.
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// Reading from an index returns the default value if attempting to access out of bounds.
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template<class T> class growing_vector
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{
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public:
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growing_vector() : data() {}
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std::vector<T> data;
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T & operator[](std::size_t idx)
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{
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if (idx >= data.size())
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data.resize((idx + 1) * 2);
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return data[idx];
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}
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const T & operator[](std::size_t idx) const
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{
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static T defaultValue = T();
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if (idx >= data.size())
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return defaultValue;
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return data[idx];
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}
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};
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// Same but with bool specialization
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template<> class growing_vector<bool>
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{
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public:
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growing_vector() : data() {}
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std::vector<bool> data;
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std::vector<bool>::reference operator[](std::size_t idx)
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{
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if (idx >= data.size())
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data.resize((idx + 1) * 2, false);
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return data[idx];
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}
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};
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}
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