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/* Copyright (C) 2001, 2003 Free Software Foundation, Inc.  */

/* { dg-do preprocess } */

/* 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:" } } */