Function getBit

src/simplicity/bitstring.h:31–35

Return the nth bit from a bitstring. * * Precondition: NULL != s * n < s->len; */

 *               n < s->len;
 */
static inline bool getBit(const bitstring *s, size_t n) {
  size_t total_offset = s->offset + n;
  simplicity_assert(n < s->len);
  return 1 & (s->arr[total_offset / CHAR_BIT] >> (CHAR_BIT - 1 - (total_offset % CHAR_BIT)));
}

/* Return 8 bits from a bitstring staring from the nth bit.
 *