game_database.h:14:  Use int16/int64/etc, rather than the C type long  [runtime/int] [4]
game_database.h:59:  Lines should be <= 80 characters long  [whitespace/line_length] [2]
game_database.h:69:  Lines should be <= 80 characters long  [whitespace/line_length] [2]
game_database.h:82:  private: should be indented +1 space inside class GameDatabase  [whitespace/indent] [3]
game_database.h:82:  "private:" should be preceded by a blank line  [whitespace/blank_line] [3]
game_database.h:57:  Add #include <string> for string  [build/include_what_you_use] [4]
Done processing game_database.h
Total errors found: 6