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1// RUN: %clang_cc1 %s -E | FileCheck --strict-whitespace --match-full-lines %s2 3// In the following tests, note that the output is sensitive to the4// whitespace *preceding* the varargs argument, as well as to5// interior whitespace. AFAIK, this is the only case where whitespace6// preceding an argument matters, and might be considered a bug in7// GCC. Nevertheless, since this feature is a GCC extension in the8// first place, we'll follow along.9 10#define debug(format, ...) format, ## __VA_ARGS__)11// CHECK:V);12debug(V);13// CHECK:W,1, 2);14debug(W,1, 2);15// CHECK:X, 1, 2);16debug(X, 1, 2 );17// CHECK:Y,);18debug(Y, );19// CHECK:Z,);20debug(Z,);21