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/* Copyright (C) 2001, 2003 Free Software Foundation, Inc.  */
 
/* { dg-do preprocess } */
/* { dg-options "-ansi" } */
 
/* This tests that we avoid accidental pasting, as well as gratuitous
   space insertion, in various nasty places _inside_ a macro's
   replacement list: on either side of a paste, and on either side of
   an argument.  It also tests that we don't pass empty macro leading
   whitespace to the next line - this problem use to break Emacs
   preprocessor abuse.
 
   Neil Booth, 1 Feb 2001.  */
 
#define EMPTY_WITH_LEADING_SPACE
#define f(x, y) :x: -y##> -##y>
#define g(x, y) :x: :y##2 2##y:
 
/* This should preprocess as
 
: : : - > - >
:2: :22 22:
 
We used to get a space at the start of the line.  */
 
 EMPTY_WITH_LEADING_SPACE
f(:,) 
g(2, 2)
 
/* { dg-final { scan-file avoidpaste2.i "(^|\\n): : : - > - >" } } 
   { dg-final { scan-file avoidpaste2.i "(^|\\n):2: :22 22:" } } */