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1 #ifndef FIO_HWEIGHT_H
2 #define FIO_HWEIGHT_H
3 
4 #include <inttypes.h>
5 
6 unsigned int hweight8(uint8_t w);
7 unsigned int hweight32(uint32_t w);
8 unsigned int hweight64(uint64_t w);
9 
10 #endif
11