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
21It relies on the fact that even when preprocessing C we bother to separate
22the colons of C++'s :: operator.  If we confine this behavior to C++
23in 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