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- #ifndef UTIL_H
- #define UTIL_H
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- #include "config.h"
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- /* Convert from ascii hex digit to number */
- uint8_t from_hex(uint8_t ch);
- extern const uint8_t hex[16];
-
- /* Array length */
- #define array_len(x) (sizeof(x)/sizeof(x[0]))
-
- #endif
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