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| author | Neil Booth <neil@cat.daikokuya.demon.co.uk> | 2001-07-31 06:52:21 +0000 |
|---|---|---|
| committer | Neil Booth <neil@gcc.gnu.org> | 2001-07-31 06:52:21 +0000 |
| commit | dd666a872b497162a7e2130415936df27f532b35 (patch) | |
| tree | f505c554fcb366f358e3e22dd4131785b97c75ce /gcc/testsuite/gcc.dg/cpp/macro8.c | |
| parent | 91abf72dfcfd9dddafdadd0d1262f1465bfb8abc (diff) | |
| download | gcc-dd666a872b497162a7e2130415936df27f532b35.zip gcc-dd666a872b497162a7e2130415936df27f532b35.tar.gz gcc-dd666a872b497162a7e2130415936df27f532b35.tar.bz2 | |
* gcc.dg/cpp/macro8.c: New tests.
From-SVN: r44502
Diffstat (limited to 'gcc/testsuite/gcc.dg/cpp/macro8.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/cpp/macro8.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/macro8.c b/gcc/testsuite/gcc.dg/cpp/macro8.c new file mode 100644 index 0000000..f49b0be --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/macro8.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-options -std=gnu89 } */ + +/* GCC 2.95.2 used to get the following variable argument macro + expansions wrong. + + Source: Neil Booth, from PR 3852 with persmission. 31 Jul 2001. */ + +#define TEST_WORSE(args...) (5, ## args) +#define TEST_BAD(foo, args...) (2, (foo), ## args) + +extern void abort (); + +static int add (int a, int b) +{ + return a + b; +} + +int main () +{ + /* Would expand to a single closing parenthesis, maybe because of + the "no args requires space" brokenness. */ + if (TEST_WORSE () != 5) + abort (); + /* The macro would expand to (0, (0) with a missing closing parenthesis. */ + if (add TEST_BAD (5) != 7) + abort (); + return 0; +} |