gcc/testsuite/gcc.dg/cpp/ucnid-15-utf8.c - gcc - Git at Google

 /* Verify macro definitions with UTF-8 in argument names are output in
    -dD output with the original spelling.  */
 /* { dg-do preprocess } */
 /* { dg-options "-std=c99 -dD" } */
 /* { dg-final { scan-file ucnid-15-utf8.i "#define a\\(Á\\) x:Á:y:Á:z" } } */
 #define a(Á) x:Á:y:Á:z
	/* Verify macro definitions with UTF-8 in argument names are output in
	-dD output with the original spelling. */
	/* { dg-do preprocess } */
	/* { dg-options "-std=c99 -dD" } */
	/* { dg-final { scan-file ucnid-15-utf8.i "#define a\\(Á\\) x:Á:y:Á:z" } } */
	#define a(Á) x:Á:y:Á:z