C bool

• https://medium.com/feis-studio/%E6%80%8E%E9%BA%BC%E8%A1%A8%E7%A4%BA%E6%98%AF%E9%9D%9E%E5%B0%8D%E9%8C%AF-%E5%9C%A8-c-%E8%88%87-c-%E4%B8%AD%E5%B8%83%E6%9E%97-boolean-%E5%9E%8B%E6%85%8B%E7%9A%84%E6%BC%94%E9%80%B2-%E4%B8%89-c99-2b458d4fa7e0

• https://medium.com/@feis.tw/%E6%80%8E%E9%BA%BC%E8%A1%A8%E7%A4%BA%E6%98%AF%E9%9D%9E%E5%B0%8D%E9%8C%AF-%E5%9C%A8-c-%E8%88%87-c-%E4%B8%AD%E5%B8%83%E6%9E%97-boolean-%E5%9E%8B%E6%85%8B%E7%9A%84%E6%BC%94%E9%80%B2-%E5%9B%9B-c-11-1bffcd692831

• c string print bool

• https://stackoverflow.com/questions/17307275/what-is-the-printf-format-specifier-for-bool