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// PR c++/28385

// instantiating op() with void()() was making the compiler think that 'fcn'

// was const, so it could eliminate the call.

// { dg-do run }

extern "C" void abort (void);

int barcnt = 0;

class Foo {

  public:

    template

    void operator()(const T& fcn) {

      fcn();

    }

};

void bar() {

  barcnt++;

}

int main() {

  Foo myFoo;

  myFoo(bar);

  myFoo(&bar);

  if (barcnt != 2)

    abort ();

  return 0;

}