Ada Reference Manual (Ada 2022)
2.7 Comments
A comment starts with two adjacent hyphens and extends up to the end of the line.
Syntax
comment ::= --{non_end_of_line_character}
A comment may appear on any line of a program.
Static Semantics
The presence or absence of comments has no influence on whether a program is legal or illegal. Furthermore, comments do not influence the meaning of a program; their sole purpose is the enlightenment of the human reader.
Examples
Examples of comments:
-- the last sentence above echoes the Algol 68 report
end; -- processing of Line is complete
-- a long comment can be split onto
-- two or more consecutive lines
---------------- the first two hyphens start the comment
end; -- processing of Line is complete
-- a long comment can be split onto
-- two or more consecutive lines
---------------- the first two hyphens start the comment
