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34 lines
1.0 KiB
34 lines
1.0 KiB
4 years ago
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#pragma once
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template<typename T>
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struct Slice {
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virtual const void* area() const =0;
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virtual void* area() = 0;
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virtual size_t size() const = 0;
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inline T* ptr() { return (T*)area(); }
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inline const T* ptr() const { return (const T*)area(); }
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inline size_t size_bytes() const { return size() * sizeof(T); }
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inline unsigned char* as_bytes() { return (unsigned char*)area(); }
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inline const unsigned char* as_bytes() const { return (const unsigned char*)area(); }
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inline T& operator[](size_t index) {
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if(index >= size()) throw "Size too large";
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return ptr()[index];
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}
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inline const T& operator[](size_t index) const {
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if(index >= size()) throw "Size too large";
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return ptr()[index];
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}
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template<typename U>
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inline U* area_as() requires(sizeof(T) % sizeof(U) == 0) { return (U*)area(); }
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template<typename U>
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inline const U* area_as() const requires(sizeof(T) % sizeof(U) == 0) { return (U*)area(); }
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template<typename U>
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size_t size_as() const requires(sizeof(T) % sizeof(U) == 0) { return size_bytes() / sizeof(U); }
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};
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