O q acontece com o Dev-C++?

Olha o q acontece qdo tento compilar:

Esse eh o fonte:

#include
// para cout

struct circulo
{
float raio;
float x;
float y;

void inicializa(float ax, float by, float cr);
void altera_raio(float a);
float retorna_raio(void);
void move(float dx, float dy);
void mostra(void);
};

void circulo::inicializa(float ax, float by, float cr)
{
x=ax;
y=by;
raio=cr;
}

void circulo::altera_raio(float a)
{
raio=a;
}

float circulo::retorna_raio(void)
{
return raio;
}

void circulo::move(float dx, float dy)
{
x+=dx;
y+=dy;
}

void circulo::mostra(void)
{
cout<<"Raio: "< cout<<"X: "< cout<<"Y: "< }

void main()
{
circulo ac; // instanciação de um objeto circulo (criação)
ac.x=0.0;
ac.y=0.0;
ac.raio=10.0;
ac.mostra();
ac.move(1.0,1.0);
ac.mostra();
ac.x=100.0;
ac.mostra();
}

e esse eh o erro:

// Copyright (C) 1997-1999, 2000 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

#ifndef _CPP_BACKWARD_IOSTREAM_H
#define _CPP_BACKWARD_IOSTREAM_H 1

#include "backward_warning.h"
#include

using std::iostream;
using std::ostream;
using std::istream;
using std::ios;
using std::streambuf;

using std::cout;
using std::cin;
using std::cerr;
using std::clog;
#ifdef _GLIBCPP_USE_WCHAR_T
using std::wcout;
using std::wcin;
using std::wcerr;
using std::wclog;
#endif

using std::ws;
using std::endl;
using std::ends;
using std::flush;

#endif

// Local Variables:
// mode:C++
// End:

numa outra janela, naum eh um erro mas num deixa eu compilar.

o q fazer?