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[module.reach] Clarify that only TUs with an interface dependency may be incidentally reachable #4032

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Sep 18, 2020
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[module.reach] Clarify that only TUs with an interface dependency may be incidentally reachable #4032

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6 changes: 3 additions & 3 deletions source/modules.tex
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Expand Up @@ -982,9 +982,9 @@
\pnum
All translation units that are necessarily reachable are
\defnx{reachable}{reachable!translation unit}.
It is unspecified whether additional translation units on which the
point within the program has an interface dependency are considered reachable,
and under what circumstances.%
Additional translation units on which the
point within the program has an interface dependency may be considered reachable,
but it is unspecified which are and under what circumstances.%
\footnote{Implementations are therefore not required to prevent the semantic
effects of additional translation units involved in the compilation from being
observed.}
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