1 /* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.  */
2 
3 /* { dg-do preprocess } */
4 /* { dg-options "-C" } */
5 
6 /* This tests that C++ comments are either dropped, or converted to C
7    comments in macro expansions.  The + in the regexp stops it from
8    matching itself 8-)
9 
10    Neil Booth, 9 Oct 2001.  */
11 
12 #define ZERO 0 // A comment
13 
14 ZERO:
15 
16 /* { dg-final { scan-file-not cmdlne-C2.i "c+omment:" } } */
17 
18