gcc/testsuite/gcc.dg/cpp/trad/recurse-1.c


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/* Test for warning of and recovery from recursion in object-like
   macros.  */

/* { dg-do preprocess } */

#define foo foo
foo				/* { dg-error "detected recursion" } */

#define bar a bar b
bar				/* { dg-error "detected recursion" } */