--- include/osmocom/core/bits.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/osmocom/core/bits.h b/include/osmocom/core/bits.h index 5c9c7a6..c2c4863 100644 --- a/include/osmocom/core/bits.h +++ b/include/osmocom/core/bits.h @@ -78,6 +78,16 @@ uint32_t osmo_revbytebits_8(uint8_t x); /* \brief reverse the bits of each byte in a given buffer */ void osmo_revbytebits_buf(uint8_t *buf, int len);
+/*! \brief left circular shift + * \param[in] in The 16 bit unsigned integer to be rotated + * \param[in] shift Number of bits to shift \a in to, [0;16] bits + * \returns shifted value + */ +static inline uint16_t osmo_rol16(uint16_t in, unsigned shift) +{ + return (in << shift) | (in >> (16 - shift)); +} + /*! @} */
#endif /* _OSMO_BITS_H */