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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [cpp/] [avoidpaste2.c] - Blame information for rev 298

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1 298 jeremybenn
/* Copyright (C) 2001, 2003 Free Software Foundation, Inc.  */
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/* { dg-do preprocess } */
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/* { dg-options "-ansi" } */
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/* This tests that we avoid accidental pasting, as well as gratuitous
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   space insertion, in various nasty places _inside_ a macro's
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   replacement list: on either side of a paste, and on either side of
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   an argument.  It also tests that we don't pass empty macro leading
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   whitespace to the next line - this problem use to break Emacs
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   preprocessor abuse.
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   Neil Booth, 1 Feb 2001.  */
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#define EMPTY_WITH_LEADING_SPACE
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#define f(x, y) :x: -y##> -##y>
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#define g(x, y) :x: :y##2 2##y:
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/* This should preprocess as
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: : : - > - >
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:2: :22 22:
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We used to get a space at the start of the line.  */
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 EMPTY_WITH_LEADING_SPACE
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f(:,)
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g(2, 2)
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/* { dg-final { scan-file avoidpaste2.i "(^|\\n): : : - > - >" } }
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   { dg-final { scan-file avoidpaste2.i "(^|\\n):2: :22 22:" } } */

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