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* gcc.dg/cpp/avoidpaste2.c: New tests. 

From-SVN: r39394
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Neil Booth 2001-02-01 19:15:06 +00:00 committed by Neil Booth
parent bd9697727b
commit 7af5ca82f3
2 changed files with 39 additions and 0 deletions
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4
gcc/testsuite/ChangeLog
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2001-02-01 Neil Booth <neil@daikokuya.demon.co.uk>
* gcc.dg/cpp/avoidpaste2.c: New tests.
2001-01-31 Jakub Jelinek <jakub@redhat.com>
* gcc.dg/gnu99-init-1.c: Add test for [0 ... 0] range.

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gcc/testsuite/gcc.dg/cpp/avoidpaste2.c Normal file
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/* Copyright (C) 2001 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 { if ![file exists avoidpaste2.i] { return } } }
{ dg-final { if { [grep avoidpaste2.i "^: : : - > - >"] != "" } \{ } }
{ dg-final { if { [grep avoidpaste2.i "^:2: :22 22:"] != "" } \{ } }
{ dg-final { return \} \} } }
{ dg-final { fail "avoidpaste2.c: paste avoidance" } }
*/