as: AVR-Chars

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1 9.5.2.1 Special Characters
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1 The presence of a ';' anywhere on a line indicates the start of a
1 comment that extends to the end of that line.
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1    If a '#' appears as the first character of a line, the whole line is
1 treated as a comment, but in this case the line can also be a logical
1 line number directive (⇒Comments) or a preprocessor control
1 command (⇒Preprocessing).
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1    The '$' character can be used instead of a newline to separate
1 statements.
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