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/vararg1.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/cpp/vararg1.c (limited to 'gcc/testsuite/gcc.dg/cpp/vararg1.c') diff --git a/gcc/testsuite/gcc.dg/cpp/vararg1.c b/gcc/testsuite/gcc.dg/cpp/vararg1.c new file mode 100644 index 000000000..38bf56bd0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/vararg1.c @@ -0,0 +1,26 @@ +/* { dg-do run } */ +/* { dg-options -w } */ + +/* count() used to give 1 owing to a buggy test for varargs. */ +#define count(y...) count1 ( , ##y) +#define count1(y...) count2 (y,1,0) +#define count2(_,x0,n,y...) n +#if count() != 0 || count(A) != 1 +#error Incorrect vararg argument counts +#endif + +/* Test for changed behavior of the GNU varargs extension. + ##args, where args is a rest argument which received zero tokens, + used to delete the previous sequence of nonwhitespace characters. + Now it deletes the previous token. */ + +#include + +#define S(str, args...) " " str "\n", ##args + +int +main() +{ + const char *s = S("foo"); + return strchr (s, '\n') == NULL; +} -- cgit v1.2.3