@brief check if book has a board @param b a board to find @return if contains, true, else false */

can't use conversion operator because of ambiguity

@brief calculate the number of discs of opponent @return the number of discs of opponent */

Create a new folder in the specified directory

Debug function to output all registered openings and their weights

! @brief check whether a string is UTF-8 encoded The function checks each byte of a string whether it is UTF-8 encoded. The result of the

@brief delete all board in this book */

@brief delete a board @param b a board to delete */

Delete folder (only if empty)

Delete folder (only if empty)

Delete opening

Delete opening

@brief delete a board @param b a board to delete @return board deleted? */

@brief delete a board with checking all symmetry boards @param b a board to delete @return 1 if board is d