1 /* Copyright (C) 2001, 2003 Free Software Foundation, Inc.  */
2 
3 /* { dg-do preprocess } */
4 /* { dg-options "-ansi" } */
5 
6 /* This tests that we avoid accidental pasting only before and after
7    macros and arguments, and not when the tokens are already pasted
8    in the souce file (e.g. "::" in a C source file).
9 
10    Neil Booth, 28 Jan 2001.  */
11 
12 #define f(x) x
13 #define g
14 #define tricky 1.0e ## -1
15 
16 /* This should preprocess as
17 
18 :: : : : : :^: 1.0e- 1
19 : : : .. . 0 0 .
20 
21 It relies on the fact that even when preprocessing C we bother to separate
22 the colons of C++'s :: operator.  If we confine this behavior to C++
23 in future, this test needs to change.  */
24 
25 :: :g: :f(): :f(^): tricky
26 :f(:): .. .__INCLUDE_LEVEL__ __INCLUDE_LEVEL__. /* Check builtins, too.  */
27 
28 /* { dg-final { scan-file avoidpaste1.i ":: : : : : :\\^: 1.0e- 1" } }
29    { dg-final { scan-file avoidpaste1.i ": : : \\\.\\\. \\\. 0 0 \\\." } } */
30