...
All occurrences in a source file of the following sequences of three characters (that is, trigraph sequences) are replaced with the corresponding single character.
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#
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]
??!
|
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="0d0ff9a36f52cec7-5b9d31ab-426d487a-8f3ba279-1f2f009b5481598b3584e6a3"><ac:plain-text-body><![CDATA[
??(
[
??'
^
??>
}
]]></ac:plain-text-body></ac:structured-macro>
??/
\
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{
??-
~
...
PRE06-A. Enclose header file in an inclusion sandwichguard 01. Preprocessor (PRE) PRE08-A. Guarantee that header filenames are unique