test/Preprocessor/macro_fn_varargs_named.c


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// RUN: clang-cc -E %s | grep '^a: x$' &&
// RUN: clang-cc -E %s | grep '^b: x y, z,h$' &&
// RUN: clang-cc -E %s | grep '^c: foo(x)$'

#define A(b, c...) b c
a: A(x)
b: A(x, y, z,h)

#define B(b, c...) foo(b, ## c)
c: B(x)