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/* { dg-do preprocess } */
/* 6.9.3.11: ...If there are sequences of preprocessing tokens within
the list of arguments that would otherwise act as preprocessing
directives, the behavior is undefined.
I choose to make this a hard error. It definitely should not cause
a core dump. */
#define foo(bar) bar
foo( blah /* { dg-error "unterminated" "" { target *-*-* } 13 } */
#undef foo /* { dg-error "may not be used inside" "foo(#undef foo)" } */
blah )
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