| On 10/14/2013 03:18 PM, Gabriel Dos Reis wrote:
| > Gabriel Dos Reis <gdr_at_[hidden]> writes:
| >
| > | Howdy!
| > |
| > | At the evening session (Thursday September 26) at the Chicago meeting,
| > | there was a consensus expressed that erroneous preprocessor constructs
| > | should not be ground for undefined behavior.
| > |
| > | The attached PDF file is my current attempt at implementing that consensus.
| > | Please read and comment. Suggestions for improvements, corrections
| welcome.
| >
| > Revision based on feedback attached.
| > - UCN token splicing is made conditionally supported with
| > implementation defined semantics, instead of just ill-formed as
| > proposed earlier.
|
| Aren't there just two options: Either this becomes a UCN by token splicing,
| or it stays a sequence of individual characters? Can't we just say that?

A third option is "ill-formed". I don't think we should get down to that
level of detail here. I would rather leave it to implementations and tools
whether they want to support clean mode (diagnose), garbage mode (individual
characters), or make sense of it (implementation-defined semantics.)

-- Gaby