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// { dg-do run }

// Copyright (C) 2000 Free Software Foundation, Inc.

// Contributed by Nathan Sidwell 30 Nov 2001 

// PR 87

int assign = 0;

int ctor = 0;

int assignC = 0;

struct A {

  int i;

  template

  void operator=(const T&) const

  {

    assign = 1;

  }

  A () : i (0) {}

  template  A (const T &)

  {

    ctor = 1;

  }

};

struct B : A

{

};

struct C

{

  int i;

  C (int i_) :i (i_) {}

  template 

  void operator= (const C &)

  {

    assignC = 1;

  }

};

int main()

{

  const A a;

  A b;

  B c;

  b = a;

  if (assign)

    return 5;

  b.i = 100;

  c.i = 200;

  a = b;

  if (!assign)

    return 1;

  if (a.i)

    return 2;

  A e (b);

  if (ctor)

    return 3;

  A d (c);

  if (!ctor)

    return 4;

  C c0 (0);

  C c1 (1);

  c0 = c1;

  if (assignC)

    return 5;

  return 0;

}