1/* { dg-do compile } */ 2/* { dg-options -std=gnu89 } */ 3 4/* GCC 2.95.2 used to get the following variable argument macro 5 expansions wrong. 6 7 Source: Neil Booth, from PR 3852 with persmission. 31 Jul 2001. */ 8 9#define TEST_WORSE(args...) (5, ## args) 10#define TEST_BAD(foo, args...) (2, (foo), ## args) 11 12extern void abort (); 13 14static int add (int a, int b) 15{ 16 return a + b; 17} 18 19int main () 20{ 21 /* Would expand to a single closing parenthesis, maybe because of 22 the "no args requires space" brokenness. */ 23 if (TEST_WORSE () != 5) 24 abort (); 25 /* The macro would expand to (0, (0) with a missing closing parenthesis. */ 26 if (add TEST_BAD (5) != 7) 27 abort (); 28 return 0; 29} 30