Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/cpp/avoidpaste2.c @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
comparison
equal
deleted
inserted
replaced
| 68:561a7518be6b | 111:04ced10e8804 |
|---|---|
| 1 /* Copyright (C) 2001, 2003 Free Software Foundation, Inc. */ | |
| 2 | |
| 3 /* { dg-do preprocess } */ | |
| 4 /* { dg-options "-ansi" } */ | |
| 5 | |
| 6 /* This tests that we avoid accidental pasting, as well as gratuitous | |
| 7 space insertion, in various nasty places _inside_ a macro's | |
| 8 replacement list: on either side of a paste, and on either side of | |
| 9 an argument. It also tests that we don't pass empty macro leading | |
| 10 whitespace to the next line - this problem use to break Emacs | |
| 11 preprocessor abuse. | |
| 12 | |
| 13 Neil Booth, 1 Feb 2001. */ | |
| 14 | |
| 15 #define EMPTY_WITH_LEADING_SPACE | |
| 16 #define f(x, y) :x: -y##> -##y> | |
| 17 #define g(x, y) :x: :y##2 2##y: | |
| 18 | |
| 19 /* This should preprocess as | |
| 20 | |
| 21 : : : - > - > | |
| 22 :2: :22 22: | |
| 23 | |
| 24 We used to get a space at the start of the line. */ | |
| 25 | |
| 26 EMPTY_WITH_LEADING_SPACE | |
| 27 f(:,) | |
| 28 g(2, 2) | |
| 29 | |
| 30 /* { dg-final { scan-file avoidpaste2.i "(^|\\n): : : - > - >" } } | |
| 31 { dg-final { scan-file avoidpaste2.i "(^|\\n):2: :22 22:" } } */ |