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/* { dg-do preprocess } */
/* Test source Robert Lipe, with minor modifications for the testsuite
by Neil Booth. 29 Oct 2000. */
#define _VA_ARGS_0() 42
#define _L_0() (
#define _R_0() )
#define __VA_ARGLIST(argc,list) \
_VA_ARGS_##argc list
#define _CAT_LIST(argc,list1,list2) \
_L_##argc list1 _R_##argc list2
#define _VA_ARGLIST(argc,list1,list2) \
__VA_ARGLIST(argc, \
_CAT_LIST(argc, list1, list2))
#define BLAH(a) _VA_ARGLIST(a, (), ())
#if BLAH (0) != 42
#error Simulated varargs macros
#endif
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