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https://github.com/torvalds/linux
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Tip revision: 3e5de27e940d00d8d504dfb96625fb654f641509 authored by Linus Torvalds on 04 December 2016, 20:50:51 UTC
Linux 4.9-rc8
Tip revision: 3e5de27
xyarray.h
#ifndef _PERF_XYARRAY_H_
#define _PERF_XYARRAY_H_ 1

#include <sys/types.h>

struct xyarray {
	size_t row_size;
	size_t entry_size;
	size_t entries;
	char contents[];
};

struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
void xyarray__delete(struct xyarray *xy);
void xyarray__reset(struct xyarray *xy);

static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
{
	return &xy->contents[x * xy->row_size + y * xy->entry_size];
}

#endif /* _PERF_XYARRAY_H_ */
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