1 /* { dg-do preprocess } */
2 /* { dg-options "-std=gnu99 -Wtrigraphs" } */
3 
4 /* Test we don't double warn for trigraphs immediately after preceding
5    text.  Source Neil Booth.  22 Nov 2000.  */
6 
7 abcdef??<			/* { dg-warning "ignored" } */
8 123456??>			/* { dg-warning "ignored" } */
9 +??=				/* { dg-warning "ignored" } */
10 
11 /* Test we warn of escaped newlines only in comments.  Source Neil
12    Booth.  4 May 2003.  */
13 
14 /* { dg-bogus "ignored" } Test ??< ??= a few ??/ random things in
15    { dg-warning "ignored" } some ??/
16    { dg-bogus "ignored" } ??< comments.  */
17 
18 // { dg-bogus "ignored" } More ??/ comment ??> tests.
19 
20 // { dg-warning "ignored" } Another ??/
21    Test
22 
23 // { dg-warning "ignored" } And another with space after ??/
24    the escape
25 
26 // { dg-bogus "ignored" } A tricky one ??/\
27 
28