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/* { 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 <string.h>
#define S(str, args...) " " str "\n", ##args
int
main()
{
const char *s = S("foo");
return strchr (s, '\n') == NULL;
}
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