Public Comment Number PC-UK0048 ISO/IEC CD 9899 (SC22N2620) Public Comment =========================================== Date: 1998-01-14 Author: Clive D.W. Feather Author Affiliation: Self Postal Address: Demon Internet Limited 322 Regents Park Road London N3 2QQ United Kingdom E-mail Address: Telephone Number: +44 181 371 1138 Fax Number: +44 181 371 1037 Number of individual comments: 1 Comment 1. ? Category: Other: unresolved issue Committee Draft subsection: 6.1.7, 6.8.2 Title: Problems with UCNs in header file names Detailed description: Consider the line: #include "a$b.h" This will be changed, in translation phase 1, to: #include "a\u0024b.h" Both of these involve undefined behavior, but equally both are valid file names on at least one common operating system. It is likely that implementations that implement UCNs in a natural manner are going to have problems deciding which of the names was intended. I'm not clear what the answer is, but it needs addressing.