Issue 0026: Can one use other than the basic C character set in a strictly conforming program?

This issue has been automatically converted from the original issue lists and some formatting may not have been preserved.

Authors: Randall Meyers, WG14
Date: 1992-12-10
Reference document: X3J11/91-007
Submitted against: C90
Status: Closed
Converted from: dr.htm, dr_026.html

Example:

#include stdio.h>
 int main()
 {
 puts("@$(etc.)");
 return 0;
 }

Is this a strictly conforming program?

Comment from WG14 on 1997-09-23:

Response

Strictly conforming programs cannot depend on unspecified or implementation-defined behavior (cf. clause 4, page 3, lines 31-32). Note that @ and $ are extended source characters. Source characters are translated to execution characters in an unspecified manner (cf. subclause 5.2.1). This is in the "C" locale. The @ character is either a printing character or a control character, either of which is implementation-defined (subclause 7.3, page 102, lines 8-11). Therefore, the program is not strictly conforming.