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// PR c++/42844

// { dg-do compile }

struct A

{

  A(){}

};

struct B : A { int i; }; // { dg-message "user-provided default constructor" }

struct C : A { int i; }; // { dg-message "user-provided default constructor" }

struct D : B { D() {} };

struct E { int i; }; // { dg-message "user-provided default constructor" }

template 

struct F : A { T t; }; // { dg-message "user-provided default constructor" }

template 

struct G { T t; }; // { dg-message "user-provided default constructor" }

void f ()

{

  B const b;    // { dg-error "uninitialized const" }

  extern B const bext;

  C const c[ 1 ]; // { dg-error "uninitialized const" }

  extern C const cext[ 1 ];

  D const d;

  extern D const dext;

  E const e;    // { dg-error "uninitialized const" }

  extern E const eext;

  F const f; // { dg-error "uninitialized const" }

  extern F const fext;

  G const g; // { dg-error "uninitialized const" }

  extern G const gext;

}

struct H { int i; }; // { dg-message "user-provided default constructor" }

struct I : A { int i; }; // { dg-message "user-provided default constructor" }

template 

void g ()

{

  T const t; // { dg-error "uninitialized const" }

  extern T const text;

}

template void g ();

template void g ();