1// Test the GNU comma swallowing extension. 2// RUN: %clang_cc1 %s -E | FileCheck -strict-whitespace %s 3 4// CHECK: 1: foo{A, } 5#define X(Y) foo{A, Y} 61: X() 7 8 9// CHECK: 2: fo2{A,} 10#define X2(Y) fo2{A,##Y} 112: X2() 12 13// should eat the comma. 14// CHECK: 3: {foo} 15#define X3(b, ...) {b, ## __VA_ARGS__} 163: X3(foo) 17 18 19 20// PR3880 21// CHECK: 4: AA BB 22#define X4(...) AA , ## __VA_ARGS__ BB 234: X4() 24 25// PR7943 26// CHECK: 5: 1 27#define X5(x,...) x##,##__VA_ARGS__ 285: X5(1) 29