Function bit_array_get

src/butil/bit_array.h:68–71

Get i-th bit (from left, counting from 0) of |array|

// Get i-th bit (from left, counting from 0) of |array|
inline uint64_t bit_array_get(const uint64_t* array, size_t i) {
    const size_t off = (i >> 6);
    return (array[off] & (((uint64_t)1) << (i - (off << 6))));
}

// Find index of first 1-bit from bit |begin| to |end| in |array|.
// Returns |end| if all bits are 0.