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"external" modules and warnings

From: Steve Downey <sdowney_at_[hidden]>
Date: Fri, 22 Dec 2023 12:13:28 -0500
Marking external headers with -isystem is a common strategy for dealing
with warning suppression for files outside your control. This can be a
mistake as it can suppress warnings from misuse such as conversion in std::
optional, but such are the tradeoffs for false positives.
If module interfaces are built as part of a project do we need mechanisms
to suppress warnings? Standard libraries use pragmas to mark themselves,
but most libraries will and should not?

Thoughts raised due to
https://lucisqr.substack.com/p/the-warnings-you-never-saw -- which I have
issues with and have not completely verified.

Received on 2023-12-22 17:13:40