31 lines
579 B
C++
Executable File
31 lines
579 B
C++
Executable File
#include "precompiled.h"
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#include "adts.h"
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template<class T, int max_items> class DynArray
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{
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public:
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DynArray() {}
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~DynArray() {}
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T* operator[](uint n)
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{
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T*& page = pages[n / items_per_page];
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if(!page)
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{
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page = (T*)calloc(PAGE_SIZE, 1);
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if(!page)
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return 0;
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}
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return page + (n % items_per_page);
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}
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private:
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enum { PAGE_SIZE = 4096 };
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// const size_t items_per_page = sizeof(T) / PAGE_SIZE;
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// const size_t num_pages = (max_items + items_per_page-1) / items_per_page;
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T* pages[(max_items + (sizeof(T) / PAGE_SIZE)-1) / (sizeof(T) / PAGE_SIZE)];
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};
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