9.52.1.1 Special Characters

# ’ is the line comment character. If a ‘ # ’ appears as the first character of a line, the whole line is treated as a comment, but in this case the line can also be a logical line number directive (see Comments ) or a preprocessor control command (see Preprocessing ).

A semicolon (‘ ; ’) can be used to start a comment that extends from wherever the character appears on the line up to the end of the line.

The ‘ | ’ character can be used to separate statements on the same line.