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// { dg-do compile }

// { dg-options "-finline-small-functions -findirect-inlining -finline-functions -O" }

extern "C" {

typedef long unsigned int size_t;

typedef long int __ssize_t;

typedef struct _IO_FILE FILE;

typedef struct

{

} __mbstate_t;

extern __inline __attribute__ ((__gnu_inline__)) int

fgetc_unlocked (FILE *__fp)

{

}

extern __inline __attribute__ ((__gnu_inline__)) int

putc_unlocked (int __c, FILE *__stream)

{

}

extern __inline __attribute__ ((__gnu_inline__)) __ssize_t

getline (char **__lineptr, size_t *__n, FILE *__stream)

{

}

extern __inline __attribute__ ((__gnu_inline__)) int

ferror_unlocked (FILE *__stream) throw ()

{

}

}

typedef struct

{} __mpf_struct;

typedef __mpf_struct mpf_t[1];

typedef const __mpf_struct *mpf_srcptr;

typedef __mpf_struct *mpf_ptr;

extern "C" {

 void __gmpf_add (mpf_ptr, mpf_srcptr, mpf_srcptr);

}

class _knumber

{

 public:

  enum NumType {SpecialType, IntegerType, FractionType, FloatType};

  virtual NumType type(void) const = 0;

  virtual _knumber * add(_knumber const & arg2) const = 0;

  virtual operator long int(void) const = 0;

};

class _knumfloat : public _knumber

{

  _knumfloat(double num = 1.0)

  ;

  virtual NumType type(void) const ;

  virtual _knumber * add(_knumber const & arg2) const;

  virtual operator long int (void) const;

    mpf_t _mpf;

};

_knumber *_knumfloat::add(_knumber const & arg2) const

{

  if (arg2.type() == SpecialType)

    return arg2.add(*this);

{

    _knumfloat tmp_num(arg2);

    return tmp_num.add(*this);

  }

  _knumfloat * tmp_num = new _knumfloat();

  __gmpf_add(tmp_num->_mpf, _mpf,

   dynamic_cast<_knumfloat const &>(arg2)._mpf);

}