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/* Test that nested commas and parentheses in macro arguments are
OK. */
/* { dg-do preprocess } */
#define f(x) x
#define g(x, y) x y
#if f((1)) != 1
# error /* { dg-bogus "error" "nested parens 1" } */
#endif
#if f((1, 2)) != 2
# error /* { dg-bogus "error" "nested comma 1" } */
#endif
#if g(, (1)) != 1
# error /* { dg-bogus "error" "nested parens 2" } */
#endif
#if g((1, 2), + 3) != 5
# error /* { dg-bogus "error" "nested comma 2" } */
#endif
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