Error(s):

(3:2) Preprocessor directive expected
(3:10) Single-line comment or end-of-line expected
(4:2) Preprocessor directive expected
(4:10) Single-line comment or end-of-line expected
(5:2) Preprocessor directive expected
(5:10) Single-line comment or end-of-line expected
(8:13) Type expected
(8:13) Invalid token ':' in class, struct, or interface member declaration
(9:24) Overloadable operator expected
(9:25) Syntax error, '(' expected
(9:27) ; expected
(9:33) ; expected
(10:25) Invalid token '<<' in class, struct, or interface member declaration
(10:30) Invalid token '<<' in class, struct, or interface member declaration
(12:1) Type or namespace definition, or end-of-file expected
(12:2) A namespace cannot directly contain members such as fields or methods