Ah, yes, this is a difference between C and C++ terminology. In C++ the basic character set is abstract, and the literal character set is also, and merely extends the basic set by adding NULL, ALERT, BACKSPACE, and CARRIAGE RETURN.

Our machinery differs just enough to be confusing for standards proposals, while for most working programmers appearing to be the same.

On Wed, May 11, 2022 at 4:37 PM Philipp Klaus Krause via Liaison <liaison@lists.isocpp.org> wrote:

Am 11.05.22 um 22:24 schrieb Steve Downey via Liaison:

> I am not sure this was noticed in reviewing N2701 but thought I'd bring
> it to your attention.

This is a reason N2701 doesn't add them as members of the basic source
character set, as noted in the last paragraph of the "Justification"
section.

Philipp
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