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/* Similar to c99-flex-array-3.c, but a system header so should not

   have diagnostics even with -pedantic-errors.  */

#pragma GCC system_header

struct flex { int a; int b[]; };

union rf1 { struct flex a; int b; };

union rf2 { int a; struct flex b; };

union rf3 { int a; union rf1 b; };

union rf4 { union rf2 a; int b; };

struct t0 { struct flex a; };

struct t1 { union rf1 a; };

struct t2 { union rf2 a; };

struct t3 { union rf3 a; };

struct t4 { union rf4 a; };

void f0 (struct flex[]);

void f1 (union rf1[]);

void f2 (union rf2[]);

void f3 (union rf3[]);

void f4 (union rf4[]);

struct flex a0[1];

union rf1 a1[1];

union rf2 a2[1];

union rf3 a3[1];

union rf4 a4[1];