21 lines
		
	
	
	
		
			432 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			21 lines
		
	
	
	
		
			432 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
|   | #ifndef _PERF_XYARRAY_H_
 | ||
|  | #define _PERF_XYARRAY_H_ 1
 | ||
|  | 
 | ||
|  | #include <sys/types.h>
 | ||
|  | 
 | ||
|  | struct xyarray { | ||
|  | 	size_t row_size; | ||
|  | 	size_t entry_size; | ||
|  | 	char contents[]; | ||
|  | }; | ||
|  | 
 | ||
|  | struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size); | ||
|  | void xyarray__delete(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_ */
 |