From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/cpp/macro8.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/cpp/macro8.c (limited to 'gcc/testsuite/gcc.dg/cpp/macro8.c') diff --git a/gcc/testsuite/gcc.dg/cpp/macro8.c b/gcc/testsuite/gcc.dg/cpp/macro8.c new file mode 100644 index 000000000..f49b0be9e --- /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; +} -- cgit v1.2.3