Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/cpp/avoidpaste2.c @ 132:d34655255c78
update gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 10:21:07 +0900 |
parents | 04ced10e8804 |
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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:" } } */