default1.c

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// { dg-do assemble  }
// PRMS Id: 5204
// Bug: g++ bashes the type of add_sym with the type of add, so calling it
// with one parameter generates an error.

int add(int const &symbol,
	const unsigned char flags=(void*)0); // { dg-error "" } invalid default arg

int add_sym(int const &symbol,
	    const unsigned char flags=0);

int main()
{
   int fname;
   add_sym(fname);      // Guarantee a symbol exists
}