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/* Test diagnosis of nested tag redefinitions.  */

/* Origin: Joseph Myers <jsm@polyomino.org.uk> */

/* { dg-do compile } */

/* { dg-options "" } */

struct s0 {

  struct s0 { int a; } x; /* { dg-error "nested redefinition of 'struct s0'" } */

};

struct s1 {

  const struct s1 { int b; } x; /* { dg-error "nested redefinition of 'struct s1'" } */

};

struct s2 {

  struct s2 { int c; } *x; /* { dg-error "nested redefinition of 'struct s2'" } */

};

struct s3 {

  struct s4 {

    struct s5 {

      struct s3 { int a; } **x; /* { dg-error "nested redefinition of 'struct s3'" } */

    } y;

  } z;

};

struct s6;

struct s6 { struct s6 *p; };

union u0 {

  union u0 { int c; } *x; /* { dg-error "nested redefinition of 'union u0'" } */

};

enum e0 {

  E0 = sizeof(enum e0 { E1 }) /* { dg-error "nested redefinition of 'enum e0'" } */

};

enum e1 {

  E2 = sizeof(enum e2 { E2 }), /* { dg-error "redeclaration of enumerator 'E2'" } */

  /* { dg-message "note: previous definition" "previous E2" { target *-*-* } 38 } */

  E3

};

enum e3;

enum e3 { E4 = 0 };