A comment is a character-string that can contain any combination of characters from the character set of the computer. It has no effect on the execution of the program. There are two forms of comments:
Character-strings that form comments can contain any single-byte or multibyte character from the code page in effect for compilation.
Multiple comment lines that contain multibyte strings are allowed. The embedding of multibyte characters in a comment line must be done on a line-by-line basis. Words containing those characters cannot be continued to a following line. No syntax checking for valid strings is provided in comment lines.