Add uc_bv_find_first_zero

include/ucore/bitvec.h

@@ -68,11 +68,16 @@ void uc_bv_set_all(struct UCBitVec *v);
 /** Initialize bits from a array of ints, each array element maps to one bit.
  * The bits are initialized from the int array so zero maps to zero and non-zero maps to one.
  * e..g to set the 5 first bits, to 01110:
- * int a[] = {0,1,1,1,0};
+ * int a[] = {0,1,1,1,0};
  * set_bits_from_array(v,a,5);
  * */
 void uc_bv_set_bits_from_array(struct UCBitVec *v,const char *array,size_t array_len);
 
+/** Find the index of the first zero bit in the bitvec.
+ * @param v The bitvec to search
+ * @return The index of the first zero bit, or -1 if all bits are set
+ */
+int uc_bv_find_first_zero(const struct UCBitVec *v);
 
 #ifdef __cplusplus
 }