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From: "jwakely.gcc at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: libabigail@sourceware.org
Subject: [Bug default/28641] const'ness of member functions is not detected
 in clang++ binaries
Date: Thu, 09 Dec 2021 11:25:57 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28641

--- Comment #11 from Jonathan Wakely <jwakely.gcc at gmail dot com> ---
Abigail should just ignore that completely. The implicit parameter is not
observable or accessible to user code, and there is no way to modify it whe=
ther
or not it's "declared" as X* const or X*.

That implicit parameter is not the `this` pointer, it's the _value_ of the
`this` pointer, but that's not the same thing.  `this` is a keyword that
produces a prvalue of type "pointer to cv X" so it's always non-const (but
unmodifiable, because it's a prvalue of fundamental type). The implicit
parameter is what the compiler uses to provide the value of that prvalue, b=
ut
is not actually the prvalue itself.

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