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#ifndef STDDEF_H
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#define STDDEF_H
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#define NULL ((void*)0)
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typedef unsigned long size_t;
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#ifdef __GNUC__
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#define offsetof(structure, member) __builtin_offsetof (structure, member)
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#else
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#define offsetof(structure, member) ((size_t)&(((structure*)0)->member))
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#endif
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#endif
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