#include<set>
// <set> -*- C++ -*-

// Copyright (C) 2001-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/*
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Hewlett-Packard Company makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 *
 * Copyright (c) 1996,1997
 * Silicon Graphics Computer Systems, Inc.
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Silicon Graphics makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 */

/** @file include/set
 *  This is a Standard C++ Library header.
 */

#ifndef _GLIBCXX_SET
#define _GLIBCXX_SET 1

#pragma GCC system_header

#include <bits/stl_tree.h>
#include <bits/stl_set.h>
#include <bits/stl_multiset.h>
#include <bits/range_access.h>

#ifdef _GLIBCXX_DEBUG
# include <debug/set>
#endif

#ifdef _GLIBCXX_PROFILE
# include <profile/set>
#endif

#endif /* _GLIBCXX_SET */

ku5

// <stack> -*- C++ -*-

// Copyright (C) 2001-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/*
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Hewlett-Packard Company makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 *
 * Copyright (c) 1996,1997
 * Silicon Graphics Computer Systems, Inc.
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Silicon Graphics makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 */

/** @file include/stack
 *  This is a Standard C++ Library header.
 */

#ifndef _GLIBCXX_STACK
#define _GLIBCXX_STACK 1

#pragma GCC system_header

#include <deque>
#include <bits/stl_stack.h>

#endif /* _GLIBCXX_STACK */

ku4

#include<cmath>
// -*- C++ -*- C forwarding header.

// Copyright (C) 1997-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file include/cmath
 *  This is a Standard C++ Library file.  You should @c \#include this file
 *  in your programs, rather than any of the @a *.h implementation files.
 *
 *  This is the C++ version of the Standard C Library header @c math.h,
 *  and its contents are (mostly) the same as that header, but are all
 *  contained in the namespace @c std (except for names which are defined
 *  as macros in C).
 */

//
// ISO C++ 14882: 26.5  C library
//

#pragma GCC system_header

#include <bits/c++config.h>
#include <bits/cpp_type_traits.h>
#include <ext/type_traits.h>
#include <math.h>

#ifndef _GLIBCXX_CMATH
#define _GLIBCXX_CMATH 1

// Get rid of those macros defined in <math.h> in lieu of real functions.
#undef abs
#undef div
#undef acos
#undef asin
#undef atan
#undef atan2
#undef ceil
#undef cos
#undef cosh
#undef exp
#undef fabs
#undef floor
#undef fmod
#undef frexp
#undef ldexp
#undef log
#undef log10
#undef modf
#undef pow
#undef sin
#undef sinh
#undef sqrt
#undef tan
#undef tanh

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR double
  abs(double __x)
  { return __builtin_fabs(__x); }
#endif

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  abs(float __x)
  { return __builtin_fabsf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  abs(long double __x)
  { return __builtin_fabsl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    abs(_Tp __x)
    { return __builtin_fabs(__x); }

  using ::acos;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  acos(float __x)
  { return __builtin_acosf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  acos(long double __x)
  { return __builtin_acosl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    acos(_Tp __x)
    { return __builtin_acos(__x); }

  using ::asin;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  asin(float __x)
  { return __builtin_asinf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  asin(long double __x)
  { return __builtin_asinl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    asin(_Tp __x)
    { return __builtin_asin(__x); }

  using ::atan;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  atan(float __x)
  { return __builtin_atanf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  atan(long double __x)
  { return __builtin_atanl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    atan(_Tp __x)
    { return __builtin_atan(__x); }

  using ::atan2;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  atan2(float __y, float __x)
  { return __builtin_atan2f(__y, __x); }

  inline _GLIBCXX_CONSTEXPR long double
  atan2(long double __y, long double __x)
  { return __builtin_atan2l(__y, __x); }
#endif

  template<typename _Tp, typename _Up>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    atan2(_Tp __y, _Up __x)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return atan2(__type(__y), __type(__x));
    }

  using ::ceil;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  ceil(float __x)
  { return __builtin_ceilf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  ceil(long double __x)
  { return __builtin_ceill(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    ceil(_Tp __x)
    { return __builtin_ceil(__x); }

  using ::cos;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  cos(float __x)
  { return __builtin_cosf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  cos(long double __x)
  { return __builtin_cosl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    cos(_Tp __x)
    { return __builtin_cos(__x); }

  using ::cosh;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  cosh(float __x)
  { return __builtin_coshf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  cosh(long double __x)
  { return __builtin_coshl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    cosh(_Tp __x)
    { return __builtin_cosh(__x); }

  using ::exp;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  exp(float __x)
  { return __builtin_expf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  exp(long double __x)
  { return __builtin_expl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    exp(_Tp __x)
    { return __builtin_exp(__x); }

  using ::fabs;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  fabs(float __x)
  { return __builtin_fabsf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  fabs(long double __x)
  { return __builtin_fabsl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    fabs(_Tp __x)
    { return __builtin_fabs(__x); }

  using ::floor;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  floor(float __x)
  { return __builtin_floorf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  floor(long double __x)
  { return __builtin_floorl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    floor(_Tp __x)
    { return __builtin_floor(__x); }

  using ::fmod;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  fmod(float __x, float __y)
  { return __builtin_fmodf(__x, __y); }

  inline _GLIBCXX_CONSTEXPR long double
  fmod(long double __x, long double __y)
  { return __builtin_fmodl(__x, __y); }
#endif

  template<typename _Tp, typename _Up>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    fmod(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return fmod(__type(__x), __type(__y));
    }

  using ::frexp;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline float
  frexp(float __x, int* __exp)
  { return __builtin_frexpf(__x, __exp); }

  inline long double
  frexp(long double __x, int* __exp)
  { return __builtin_frexpl(__x, __exp); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    frexp(_Tp __x, int* __exp)
    { return __builtin_frexp(__x, __exp); }

  using ::ldexp;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  ldexp(float __x, int __exp)
  { return __builtin_ldexpf(__x, __exp); }

  inline _GLIBCXX_CONSTEXPR long double
  ldexp(long double __x, int __exp)
  { return __builtin_ldexpl(__x, __exp); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    ldexp(_Tp __x, int __exp)
    { return __builtin_ldexp(__x, __exp); }

  using ::log;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  log(float __x)
  { return __builtin_logf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  log(long double __x)
  { return __builtin_logl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    log(_Tp __x)
    { return __builtin_log(__x); }

  using ::log10;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  log10(float __x)
  { return __builtin_log10f(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  log10(long double __x)
  { return __builtin_log10l(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                    double>::__type
    log10(_Tp __x)
    { return __builtin_log10(__x); }

  using ::modf;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline float
  modf(float __x, float* __iptr)
  { return __builtin_modff(__x, __iptr); }

  inline long double
  modf(long double __x, long double* __iptr)
  { return __builtin_modfl(__x, __iptr); }
#endif

  using ::pow;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  pow(float __x, float __y)
  { return __builtin_powf(__x, __y); }

  inline _GLIBCXX_CONSTEXPR long double
  pow(long double __x, long double __y)
  { return __builtin_powl(__x, __y); }

#if __cplusplus < 201103L
  // _GLIBCXX_RESOLVE_LIB_DEFECTS
  // DR 550. What should the return type of pow(float,int) be?
  inline double
  pow(double __x, int __i)
  { return __builtin_powi(__x, __i); }

  inline float
  pow(float __x, int __n)
  { return __builtin_powif(__x, __n); }

  inline long double
  pow(long double __x, int __n)
  { return __builtin_powil(__x, __n); }
#endif
#endif

  template<typename _Tp, typename _Up>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    pow(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return pow(__type(__x), __type(__y));
    }

  using ::sin;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  sin(float __x)
  { return __builtin_sinf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  sin(long double __x)
  { return __builtin_sinl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    sin(_Tp __x)
    { return __builtin_sin(__x); }

  using ::sinh;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  sinh(float __x)
  { return __builtin_sinhf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  sinh(long double __x)
  { return __builtin_sinhl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    sinh(_Tp __x)
    { return __builtin_sinh(__x); }

  using ::sqrt;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  sqrt(float __x)
  { return __builtin_sqrtf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  sqrt(long double __x)
  { return __builtin_sqrtl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    sqrt(_Tp __x)
    { return __builtin_sqrt(__x); }

  using ::tan;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  tan(float __x)
  { return __builtin_tanf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  tan(long double __x)
  { return __builtin_tanl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    tan(_Tp __x)
    { return __builtin_tan(__x); }

  using ::tanh;

#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
  inline _GLIBCXX_CONSTEXPR float
  tanh(float __x)
  { return __builtin_tanhf(__x); }

  inline _GLIBCXX_CONSTEXPR long double
  tanh(long double __x)
  { return __builtin_tanhl(__x); }
#endif

  template<typename _Tp>
    inline _GLIBCXX_CONSTEXPR
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    double>::__type
    tanh(_Tp __x)
    { return __builtin_tanh(__x); }

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#if _GLIBCXX_USE_C99_MATH
#if !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC

// These are possible macros imported from C99-land.
#undef fpclassify
#undef isfinite
#undef isinf
#undef isnan
#undef isnormal
#undef signbit
#undef isgreater
#undef isgreaterequal
#undef isless
#undef islessequal
#undef islessgreater
#undef isunordered

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

#if __cplusplus >= 201103L
  constexpr int
  fpclassify(float __x)
  { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
				FP_SUBNORMAL, FP_ZERO, __x); }

  constexpr int
  fpclassify(double __x)
  { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
				FP_SUBNORMAL, FP_ZERO, __x); }

  constexpr int
  fpclassify(long double __x)
  { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
				FP_SUBNORMAL, FP_ZERO, __x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              int>::__type
    fpclassify(_Tp __x)
    { return __x != 0 ? FP_NORMAL : FP_ZERO; }

  constexpr bool
  isfinite(float __x)
  { return __builtin_isfinite(__x); }

  constexpr bool
  isfinite(double __x)
  { return __builtin_isfinite(__x); }

  constexpr bool
  isfinite(long double __x)
  { return __builtin_isfinite(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              bool>::__type
    isfinite(_Tp __x)
    { return true; }

  constexpr bool
  isinf(float __x)
  { return __builtin_isinf(__x); }

  constexpr bool
  isinf(double __x)
  { return __builtin_isinf(__x); }

  constexpr bool
  isinf(long double __x)
  { return __builtin_isinf(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              bool>::__type
    isinf(_Tp __x)
    { return false; }

  constexpr bool
  isnan(float __x)
  { return __builtin_isnan(__x); }

  constexpr bool
  isnan(double __x)
  { return __builtin_isnan(__x); }

  constexpr bool
  isnan(long double __x)
  { return __builtin_isnan(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              bool>::__type
    isnan(_Tp __x)
    { return false; }

  constexpr bool
  isnormal(float __x)
  { return __builtin_isnormal(__x); }

  constexpr bool
  isnormal(double __x)
  { return __builtin_isnormal(__x); }

  constexpr bool
  isnormal(long double __x)
  { return __builtin_isnormal(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              bool>::__type
    isnormal(_Tp __x)
    { return __x != 0 ? true : false; }

  // The front-end doesn't provide a type generic builtin (libstdc++/58625).
  constexpr bool
  signbit(float __x)
  { return __builtin_signbitf(__x); }

  constexpr bool
  signbit(double __x)
  { return __builtin_signbit(__x); }

  constexpr bool
  signbit(long double __x)
  { return __builtin_signbitl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
                                              bool>::__type
    signbit(_Tp __x)
    { return __x < 0 ? true : false; }

  constexpr bool
  isgreater(float __x, float __y)
  { return __builtin_isgreater(__x, __y); }

  constexpr bool
  isgreater(double __x, double __y)
  { return __builtin_isgreater(__x, __y); }

  constexpr bool
  isgreater(long double __x, long double __y)
  { return __builtin_isgreater(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    isgreater(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_isgreater(__type(__x), __type(__y));
    }

  constexpr bool
  isgreaterequal(float __x, float __y)
  { return __builtin_isgreaterequal(__x, __y); }

  constexpr bool
  isgreaterequal(double __x, double __y)
  { return __builtin_isgreaterequal(__x, __y); }

  constexpr bool
  isgreaterequal(long double __x, long double __y)
  { return __builtin_isgreaterequal(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    isgreaterequal(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_isgreaterequal(__type(__x), __type(__y));
    }

  constexpr bool
  isless(float __x, float __y)
  { return __builtin_isless(__x, __y); }

  constexpr bool
  isless(double __x, double __y)
  { return __builtin_isless(__x, __y); }

  constexpr bool
  isless(long double __x, long double __y)
  { return __builtin_isless(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    isless(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_isless(__type(__x), __type(__y));
    }

  constexpr bool
  islessequal(float __x, float __y)
  { return __builtin_islessequal(__x, __y); }

  constexpr bool
  islessequal(double __x, double __y)
  { return __builtin_islessequal(__x, __y); }

  constexpr bool
  islessequal(long double __x, long double __y)
  { return __builtin_islessequal(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    islessequal(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_islessequal(__type(__x), __type(__y));
    }

  constexpr bool
  islessgreater(float __x, float __y)
  { return __builtin_islessgreater(__x, __y); }

  constexpr bool
  islessgreater(double __x, double __y)
  { return __builtin_islessgreater(__x, __y); }

  constexpr bool
  islessgreater(long double __x, long double __y)
  { return __builtin_islessgreater(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    islessgreater(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_islessgreater(__type(__x), __type(__y));
    }

  constexpr bool
  isunordered(float __x, float __y)
  { return __builtin_isunordered(__x, __y); }

  constexpr bool
  isunordered(double __x, double __y)
  { return __builtin_isunordered(__x, __y); }

  constexpr bool
  isunordered(long double __x, long double __y)
  { return __builtin_isunordered(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename
    __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
			    && __is_arithmetic<_Up>::__value), bool>::__type
    isunordered(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return __builtin_isunordered(__type(__x), __type(__y));
    }

#else

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    fpclassify(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
				  FP_SUBNORMAL, FP_ZERO, __type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isfinite(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isfinite(__type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isinf(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isinf(__type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isnan(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isnan(__type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isnormal(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isnormal(__type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    signbit(_Tp __f)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_signbit(__type(__f));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isgreater(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isgreater(__type(__f1), __type(__f2));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isgreaterequal(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isgreaterequal(__type(__f1), __type(__f2));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isless(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isless(__type(__f1), __type(__f2));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    islessequal(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_islessequal(__type(__f1), __type(__f2));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    islessgreater(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_islessgreater(__type(__f1), __type(__f2));
    }

  template<typename _Tp>
    inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
					   int>::__type
    isunordered(_Tp __f1, _Tp __f2)
    {
      typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
      return __builtin_isunordered(__type(__f1), __type(__f2));
    }

#endif

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
#endif

#if __cplusplus >= 201103L

#ifdef _GLIBCXX_USE_C99_MATH_TR1

#undef acosh
#undef acoshf
#undef acoshl
#undef asinh
#undef asinhf
#undef asinhl
#undef atanh
#undef atanhf
#undef atanhl
#undef cbrt
#undef cbrtf
#undef cbrtl
#undef copysign
#undef copysignf
#undef copysignl
#undef erf
#undef erff
#undef erfl
#undef erfc
#undef erfcf
#undef erfcl
#undef exp2
#undef exp2f
#undef exp2l
#undef expm1
#undef expm1f
#undef expm1l
#undef fdim
#undef fdimf
#undef fdiml
#undef fma
#undef fmaf
#undef fmal
#undef fmax
#undef fmaxf
#undef fmaxl
#undef fmin
#undef fminf
#undef fminl
#undef hypot
#undef hypotf
#undef hypotl
#undef ilogb
#undef ilogbf
#undef ilogbl
#undef lgamma
#undef lgammaf
#undef lgammal
#undef llrint
#undef llrintf
#undef llrintl
#undef llround
#undef llroundf
#undef llroundl
#undef log1p
#undef log1pf
#undef log1pl
#undef log2
#undef log2f
#undef log2l
#undef logb
#undef logbf
#undef logbl
#undef lrint
#undef lrintf
#undef lrintl
#undef lround
#undef lroundf
#undef lroundl
#undef nan
#undef nanf
#undef nanl
#undef nearbyint
#undef nearbyintf
#undef nearbyintl
#undef nextafter
#undef nextafterf
#undef nextafterl
#undef nexttoward
#undef nexttowardf
#undef nexttowardl
#undef remainder
#undef remainderf
#undef remainderl
#undef remquo
#undef remquof
#undef remquol
#undef rint
#undef rintf
#undef rintl
#undef round
#undef roundf
#undef roundl
#undef scalbln
#undef scalblnf
#undef scalblnl
#undef scalbn
#undef scalbnf
#undef scalbnl
#undef tgamma
#undef tgammaf
#undef tgammal
#undef trunc
#undef truncf
#undef truncl

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  // types
  using ::double_t;
  using ::float_t;

  // functions
  using ::acosh;
  using ::acoshf;
  using ::acoshl;

  using ::asinh;
  using ::asinhf;
  using ::asinhl;

  using ::atanh;
  using ::atanhf;
  using ::atanhl;

  using ::cbrt;
  using ::cbrtf;
  using ::cbrtl;

  using ::copysign;
  using ::copysignf;
  using ::copysignl;

  using ::erf;
  using ::erff;
  using ::erfl;

  using ::erfc;
  using ::erfcf;
  using ::erfcl;

  using ::exp2;
  using ::exp2f;
  using ::exp2l;

  using ::expm1;
  using ::expm1f;
  using ::expm1l;

  using ::fdim;
  using ::fdimf;
  using ::fdiml;

  using ::fma;
  using ::fmaf;
  using ::fmal;

  using ::fmax;
  using ::fmaxf;
  using ::fmaxl;

  using ::fmin;
  using ::fminf;
  using ::fminl;

  using ::hypot;
  using ::hypotf;
  using ::hypotl;

  using ::ilogb;
  using ::ilogbf;
  using ::ilogbl;

  using ::lgamma;
  using ::lgammaf;
  using ::lgammal;

  using ::llrint;
  using ::llrintf;
  using ::llrintl;

  using ::llround;
  using ::llroundf;
  using ::llroundl;

  using ::log1p;
  using ::log1pf;
  using ::log1pl;

  using ::log2;
  using ::log2f;
  using ::log2l;

  using ::logb;
  using ::logbf;
  using ::logbl;

  using ::lrint;
  using ::lrintf;
  using ::lrintl;

  using ::lround;
  using ::lroundf;
  using ::lroundl;

  using ::nan;
  using ::nanf;
  using ::nanl;

  using ::nearbyint;
  using ::nearbyintf;
  using ::nearbyintl;

  using ::nextafter;
  using ::nextafterf;
  using ::nextafterl;

  using ::nexttoward;
  using ::nexttowardf;
  using ::nexttowardl;

  using ::remainder;
  using ::remainderf;
  using ::remainderl;

  using ::remquo;
  using ::remquof;
  using ::remquol;

  using ::rint;
  using ::rintf;
  using ::rintl;

  using ::round;
  using ::roundf;
  using ::roundl;

  using ::scalbln;
  using ::scalblnf;
  using ::scalblnl;

  using ::scalbn;
  using ::scalbnf;
  using ::scalbnl;

  using ::tgamma;
  using ::tgammaf;
  using ::tgammal;

  using ::trunc;
  using ::truncf;
  using ::truncl;

  /// Additional overloads.
  constexpr float
  acosh(float __x)
  { return __builtin_acoshf(__x); }

  constexpr long double
  acosh(long double __x)
  { return __builtin_acoshl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    acosh(_Tp __x)
    { return __builtin_acosh(__x); }

  constexpr float
  asinh(float __x)
  { return __builtin_asinhf(__x); }

  constexpr long double
  asinh(long double __x)
  { return __builtin_asinhl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    asinh(_Tp __x)
    { return __builtin_asinh(__x); }

  constexpr float
  atanh(float __x)
  { return __builtin_atanhf(__x); }

  constexpr long double
  atanh(long double __x)
  { return __builtin_atanhl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    atanh(_Tp __x)
    { return __builtin_atanh(__x); }

  constexpr float
  cbrt(float __x)
  { return __builtin_cbrtf(__x); }

  constexpr long double
  cbrt(long double __x)
  { return __builtin_cbrtl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    cbrt(_Tp __x)
    { return __builtin_cbrt(__x); }

  constexpr float
  copysign(float __x, float __y)
  { return __builtin_copysignf(__x, __y); }

  constexpr long double
  copysign(long double __x, long double __y)
  { return __builtin_copysignl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    copysign(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return copysign(__type(__x), __type(__y));
    }

  constexpr float
  erf(float __x)
  { return __builtin_erff(__x); }

  constexpr long double
  erf(long double __x)
  { return __builtin_erfl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    erf(_Tp __x)
    { return __builtin_erf(__x); }

  constexpr float
  erfc(float __x)
  { return __builtin_erfcf(__x); }

  constexpr long double
  erfc(long double __x)
  { return __builtin_erfcl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    erfc(_Tp __x)
    { return __builtin_erfc(__x); }

  constexpr float
  exp2(float __x)
  { return __builtin_exp2f(__x); }

  constexpr long double
  exp2(long double __x)
  { return __builtin_exp2l(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    exp2(_Tp __x)
    { return __builtin_exp2(__x); }

  constexpr float
  expm1(float __x)
  { return __builtin_expm1f(__x); }

  constexpr long double
  expm1(long double __x)
  { return __builtin_expm1l(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    expm1(_Tp __x)
    { return __builtin_expm1(__x); }

  constexpr float
  fdim(float __x, float __y)
  { return __builtin_fdimf(__x, __y); }

  constexpr long double
  fdim(long double __x, long double __y)
  { return __builtin_fdiml(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    fdim(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return fdim(__type(__x), __type(__y));
    }

  constexpr float
  fma(float __x, float __y, float __z)
  { return __builtin_fmaf(__x, __y, __z); }

  constexpr long double
  fma(long double __x, long double __y, long double __z)
  { return __builtin_fmal(__x, __y, __z); }

  template<typename _Tp, typename _Up, typename _Vp>
    constexpr typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type
    fma(_Tp __x, _Up __y, _Vp __z)
    {
      typedef typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type __type;
      return fma(__type(__x), __type(__y), __type(__z));
    }

  constexpr float
  fmax(float __x, float __y)
  { return __builtin_fmaxf(__x, __y); }

  constexpr long double
  fmax(long double __x, long double __y)
  { return __builtin_fmaxl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    fmax(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return fmax(__type(__x), __type(__y));
    }

  constexpr float
  fmin(float __x, float __y)
  { return __builtin_fminf(__x, __y); }

  constexpr long double
  fmin(long double __x, long double __y)
  { return __builtin_fminl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    fmin(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return fmin(__type(__x), __type(__y));
    }

  constexpr float
  hypot(float __x, float __y)
  { return __builtin_hypotf(__x, __y); }

  constexpr long double
  hypot(long double __x, long double __y)
  { return __builtin_hypotl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    hypot(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return hypot(__type(__x), __type(__y));
    }

  constexpr int
  ilogb(float __x)
  { return __builtin_ilogbf(__x); }

  constexpr int
  ilogb(long double __x)
  { return __builtin_ilogbl(__x); }

  template<typename _Tp>
    constexpr
    typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                    int>::__type
    ilogb(_Tp __x)
    { return __builtin_ilogb(__x); }

  constexpr float
  lgamma(float __x)
  { return __builtin_lgammaf(__x); }

  constexpr long double
  lgamma(long double __x)
  { return __builtin_lgammal(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    lgamma(_Tp __x)
    { return __builtin_lgamma(__x); }

  constexpr long long
  llrint(float __x)
  { return __builtin_llrintf(__x); }

  constexpr long long
  llrint(long double __x)
  { return __builtin_llrintl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              long long>::__type
    llrint(_Tp __x)
    { return __builtin_llrint(__x); }

  constexpr long long
  llround(float __x)
  { return __builtin_llroundf(__x); }

  constexpr long long
  llround(long double __x)
  { return __builtin_llroundl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              long long>::__type
    llround(_Tp __x)
    { return __builtin_llround(__x); }

  constexpr float
  log1p(float __x)
  { return __builtin_log1pf(__x); }

  constexpr long double
  log1p(long double __x)
  { return __builtin_log1pl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    log1p(_Tp __x)
    { return __builtin_log1p(__x); }

  // DR 568.
  constexpr float
  log2(float __x)
  { return __builtin_log2f(__x); }

  constexpr long double
  log2(long double __x)
  { return __builtin_log2l(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    log2(_Tp __x)
    { return __builtin_log2(__x); }

  constexpr float
  logb(float __x)
  { return __builtin_logbf(__x); }

  constexpr long double
  logb(long double __x)
  { return __builtin_logbl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    logb(_Tp __x)
    { return __builtin_logb(__x); }

  constexpr long
  lrint(float __x)
  { return __builtin_lrintf(__x); }

  constexpr long
  lrint(long double __x)
  { return __builtin_lrintl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              long>::__type
    lrint(_Tp __x)
    { return __builtin_lrint(__x); }

  constexpr long
  lround(float __x)
  { return __builtin_lroundf(__x); }

  constexpr long
  lround(long double __x)
  { return __builtin_lroundl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              long>::__type
    lround(_Tp __x)
    { return __builtin_lround(__x); }

  constexpr float
  nearbyint(float __x)
  { return __builtin_nearbyintf(__x); }

  constexpr long double
  nearbyint(long double __x)
  { return __builtin_nearbyintl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    nearbyint(_Tp __x)
    { return __builtin_nearbyint(__x); }

  constexpr float
  nextafter(float __x, float __y)
  { return __builtin_nextafterf(__x, __y); }

  constexpr long double
  nextafter(long double __x, long double __y)
  { return __builtin_nextafterl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    nextafter(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return nextafter(__type(__x), __type(__y));
    }

  constexpr float
  nexttoward(float __x, long double __y)
  { return __builtin_nexttowardf(__x, __y); }

  constexpr long double
  nexttoward(long double __x, long double __y)
  { return __builtin_nexttowardl(__x, __y); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    nexttoward(_Tp __x, long double __y)
    { return __builtin_nexttoward(__x, __y); }

  constexpr float
  remainder(float __x, float __y)
  { return __builtin_remainderf(__x, __y); }

  constexpr long double
  remainder(long double __x, long double __y)
  { return __builtin_remainderl(__x, __y); }

  template<typename _Tp, typename _Up>
    constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    remainder(_Tp __x, _Up __y)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return remainder(__type(__x), __type(__y));
    }

  inline float
  remquo(float __x, float __y, int* __pquo)
  { return __builtin_remquof(__x, __y, __pquo); }

  inline long double
  remquo(long double __x, long double __y, int* __pquo)
  { return __builtin_remquol(__x, __y, __pquo); }

  template<typename _Tp, typename _Up>
    inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
    remquo(_Tp __x, _Up __y, int* __pquo)
    {
      typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
      return remquo(__type(__x), __type(__y), __pquo);
    }

  constexpr float
  rint(float __x)
  { return __builtin_rintf(__x); }

  constexpr long double
  rint(long double __x)
  { return __builtin_rintl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    rint(_Tp __x)
    { return __builtin_rint(__x); }

  constexpr float
  round(float __x)
  { return __builtin_roundf(__x); }

  constexpr long double
  round(long double __x)
  { return __builtin_roundl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    round(_Tp __x)
    { return __builtin_round(__x); }

  constexpr float
  scalbln(float __x, long __ex)
  { return __builtin_scalblnf(__x, __ex); }

  constexpr long double
  scalbln(long double __x, long __ex)
  { return __builtin_scalblnl(__x, __ex); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    scalbln(_Tp __x, long __ex)
    { return __builtin_scalbln(__x, __ex); }
 
  constexpr float
  scalbn(float __x, int __ex)
  { return __builtin_scalbnf(__x, __ex); }

  constexpr long double
  scalbn(long double __x, int __ex)
  { return __builtin_scalbnl(__x, __ex); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    scalbn(_Tp __x, int __ex)
    { return __builtin_scalbn(__x, __ex); }

  constexpr float
  tgamma(float __x)
  { return __builtin_tgammaf(__x); }

  constexpr long double
  tgamma(long double __x)
  { return __builtin_tgammal(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    tgamma(_Tp __x)
    { return __builtin_tgamma(__x); }
 
  constexpr float
  trunc(float __x)
  { return __builtin_truncf(__x); }

  constexpr long double
  trunc(long double __x)
  { return __builtin_truncl(__x); }

  template<typename _Tp>
    constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
                                              double>::__type
    trunc(_Tp __x)
    { return __builtin_trunc(__x); }

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif // _GLIBCXX_USE_C99_MATH_TR1

#endif // C++11

#endif

ku3

#include<cstdio>
// -*- C++ -*- forwarding header.

// Copyright (C) 1997-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file include/cstdio
 *  This is a Standard C++ Library file.  You should @c \#include this file
 *  in your programs, rather than any of the @a *.h implementation files.
 *
 *  This is the C++ version of the Standard C Library header @c stdio.h,
 *  and its contents are (mostly) the same as that header, but are all
 *  contained in the namespace @c std (except for names which are defined
 *  as macros in C).
 */

//
// ISO C++ 14882: 27.8.2  C Library files
//

#pragma GCC system_header

#include <bits/c++config.h>
#include <stdio.h>

#ifndef _GLIBCXX_CSTDIO
#define _GLIBCXX_CSTDIO 1

#ifndef _GLIBCXX_HAVE_GETS
extern "C" char* gets (char* __s) __attribute__((deprecated));
#endif

// Get rid of those macros defined in <stdio.h> in lieu of real functions.
#undef clearerr
#undef fclose
#undef feof
#undef ferror
#undef fflush
#undef fgetc
#undef fgetpos
#undef fgets
#undef fopen
#undef fprintf
#undef fputc
#undef fputs
#undef fread
#undef freopen
#undef fscanf
#undef fseek
#undef fsetpos
#undef ftell
#undef fwrite
#undef getc
#undef getchar
#if __cplusplus <= 201103L
# undef gets
#endif
#undef perror
#undef printf
#undef putc
#undef putchar
#undef puts
#undef remove
#undef rename
#undef rewind
#undef scanf
#undef setbuf
#undef setvbuf
#undef sprintf
#undef sscanf
#undef tmpfile
#undef tmpnam
#undef ungetc
#undef vfprintf
#undef vprintf
#undef vsprintf

namespace std
{
  using ::FILE;
  using ::fpos_t;

  using ::clearerr;
  using ::fclose;
  using ::feof;
  using ::ferror;
  using ::fflush;
  using ::fgetc;
  using ::fgetpos;
  using ::fgets;
  using ::fopen;
  using ::fprintf;
  using ::fputc;
  using ::fputs;
  using ::fread;
  using ::freopen;
  using ::fscanf;
  using ::fseek;
  using ::fsetpos;
  using ::ftell;
  using ::fwrite;
  using ::getc;
  using ::getchar;
#if __cplusplus <= 201103L
  // LWG 2249
  using ::gets;
#endif
  using ::perror;
  using ::printf;
  using ::putc;
  using ::putchar;
  using ::puts;
  using ::remove;
  using ::rename;
  using ::rewind;
  using ::scanf;
  using ::setbuf;
  using ::setvbuf;
  using ::sprintf;
  using ::sscanf;
  using ::tmpfile;
#if _GLIBCXX_USE_TMPNAM
  using ::tmpnam;
#endif
  using ::ungetc;
  using ::vfprintf;
  using ::vprintf;
  using ::vsprintf;
} // namespace

#if _GLIBCXX_USE_C99

#undef snprintf
#undef vfscanf
#undef vscanf
#undef vsnprintf
#undef vsscanf

namespace __gnu_cxx
{
#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
  extern "C" int
  (snprintf)(char * __restrict, std::size_t, const char * __restrict, ...)
  throw ();
  extern "C" int
  (vfscanf)(FILE * __restrict, const char * __restrict, __gnuc_va_list);
  extern "C" int (vscanf)(const char * __restrict, __gnuc_va_list);
  extern "C" int
  (vsnprintf)(char * __restrict, std::size_t, const char * __restrict,
	      __gnuc_va_list) throw ();
  extern "C" int
  (vsscanf)(const char * __restrict, const char * __restrict, __gnuc_va_list)
  throw ();
#endif

#if !_GLIBCXX_USE_C99_DYNAMIC
  using ::snprintf;
  using ::vfscanf;
  using ::vscanf;
  using ::vsnprintf;
  using ::vsscanf;
#endif
} // namespace __gnu_cxx

namespace std
{
  using ::__gnu_cxx::snprintf;
  using ::__gnu_cxx::vfscanf;
  using ::__gnu_cxx::vscanf;
  using ::__gnu_cxx::vsnprintf;
  using ::__gnu_cxx::vsscanf;
} // namespace std

#endif // _GLIBCXX_USE_C99

#endif

ku2

#include<iostream>
// Standard iostream objects -*- C++ -*-

// Copyright (C) 1997-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file include/iostream
 *  This is a Standard C++ Library header.
 */

//
// ISO C++ 14882: 27.3  Standard iostream objects
//

#ifndef _GLIBCXX_IOSTREAM
#define _GLIBCXX_IOSTREAM 1

#pragma GCC system_header

#include <bits/c++config.h>
#include <ostream>
#include <istream>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  /**
   *  @name Standard Stream Objects
   *
   *  The &lt;iostream&gt; header declares the eight <em>standard stream
   *  objects</em>.  For other declarations, see
   *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html
   *  and the @link iosfwd I/O forward declarations @endlink
   *
   *  They are required by default to cooperate with the global C
   *  library's @c FILE streams, and to be available during program
   *  startup and termination. For more information, see the section of the
   *  manual linked to above.
  */
  //@{
  extern istream cin;		/// Linked to standard input
  extern ostream cout;		/// Linked to standard output
  extern ostream cerr;		/// Linked to standard error (unbuffered)
  extern ostream clog;		/// Linked to standard error (buffered)

#ifdef _GLIBCXX_USE_WCHAR_T
  extern wistream wcin;		/// Linked to standard input
  extern wostream wcout;	/// Linked to standard output
  extern wostream wcerr;	/// Linked to standard error (unbuffered)
  extern wostream wclog;	/// Linked to standard error (buffered)
#endif
  //@}

  // For construction of filebuffers for cout, cin, cerr, clog et. al.
  static ios_base::Init __ioinit;

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif /* _GLIBCXX_IOSTREAM */
#include<stdio.h>
/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */
#ifndef _INC_STDIO
#define _INC_STDIO

#include <crtdefs.h>

#include <_mingw_print_push.h>

#pragma pack(push,_CRT_PACKING)

#ifdef __cplusplus
extern "C" {
#endif

#define BUFSIZ 512
#define _NFILE _NSTREAM_
#define _NSTREAM_ 512
#define _IOB_ENTRIES 20
#define EOF (-1)

#ifndef _FILE_DEFINED
  struct _iobuf {
    char *_ptr;
    int _cnt;
    char *_base;
    int _flag;
    int _file;
    int _charbuf;
    int _bufsiz;
    char *_tmpfname;
  };
  typedef struct _iobuf FILE;
#define _FILE_DEFINED
#endif

#ifdef _POSIX_
#define _P_tmpdir "/"
#define _wP_tmpdir L"/"
#else
#define _P_tmpdir "\\"
#define _wP_tmpdir L"\\"
#endif

#define L_tmpnam (sizeof(_P_tmpdir) + 12)

#ifdef _POSIX_
#define L_ctermid 9
#define L_cuserid 32
#endif

#define SEEK_CUR 1
#define SEEK_END 2
#define SEEK_SET 0

#define	STDIN_FILENO	0
#define	STDOUT_FILENO	1
#define	STDERR_FILENO	2

#define FILENAME_MAX 260
#define FOPEN_MAX 20
#define _SYS_OPEN 20
#define TMP_MAX 32767

#ifndef NULL
#ifdef __cplusplus
#ifndef _WIN64
#define NULL 0
#else
#define NULL 0LL
#endif  /* W64 */
#else
#define NULL ((void *)0)
#endif
#endif

#include <_mingw_off_t.h>

#ifndef _STDIO_DEFINED
#ifdef _WIN64
  _CRTIMP FILE *__cdecl __iob_func(void);
#define _iob  __iob_func()
#else
#ifdef _MSVCRT_
extern FILE _iob[];	/* A pointer to an array of FILE */
#define __iob_func()	(_iob)
#else
extern FILE (* __MINGW_IMP_SYMBOL(_iob))[];	/* A pointer to an array of FILE */
#define __iob_func()	(* __MINGW_IMP_SYMBOL(_iob))
#define _iob __iob_func()
#endif
#endif
#endif

#ifndef _FPOS_T_DEFINED
#define _FPOS_T_DEFINED
#undef _FPOSOFF

#if (!defined(NO_OLDNAMES) || defined(__GNUC__))
  __MINGW_EXTENSION typedef __int64 fpos_t;
#define _FPOSOFF(fp) ((long)(fp))
#else
  __MINGW_EXTENSION typedef long long fpos_t;
#define _FPOSOFF(fp) ((long)(fp))
#endif

#endif

#ifndef _STDSTREAM_DEFINED
#define _STDSTREAM_DEFINED

#define stdin (&__iob_func()[0])
#define stdout (&__iob_func()[1])
#define stderr (&__iob_func()[2])
#endif

#define _IOREAD 0x0001
#define _IOWRT 0x0002

#define _IOFBF 0x0000
#define _IOLBF 0x0040
#define _IONBF 0x0004

#define _IOMYBUF 0x0008
#define _IOEOF 0x0010
#define _IOERR 0x0020
#define _IOSTRG 0x0040
#define _IORW 0x0080
#ifdef _POSIX_
#define _IOAPPEND 0x0200
#endif

#define _TWO_DIGIT_EXPONENT 0x1

#ifndef _STDIO_DEFINED
extern
  __attribute__((__format__ (gnu_scanf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_sscanf(const char * __restrict__ _Src,const char * __restrict__ _Format,...);
extern
  __attribute__((__format__ (gnu_scanf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vsscanf (const char * __restrict__ _Str,const char * __restrict__ Format,va_list argp);
extern
  __attribute__((__format__ (gnu_scanf, 1, 2))) __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_scanf(const char * __restrict__ _Format,...);
extern
  __attribute__((__format__ (gnu_scanf, 1, 0))) __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_vscanf(const char * __restrict__ Format, va_list argp);
extern
  __attribute__((__format__ (gnu_scanf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_fscanf(FILE * __restrict__ _File,const char * __restrict__ _Format,...);
extern
  __attribute__((__format__ (gnu_scanf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vfscanf (FILE * __restrict__ fp, const char * __restrict__ Format,va_list argp);

extern
  __attribute__((__format__ (gnu_printf, 3, 0))) __MINGW_ATTRIB_NONNULL(3)
  int __cdecl __mingw_vsnprintf(char * __restrict__ _DstBuf,size_t _MaxCount,const char * __restrict__ _Format,
                               va_list _ArgList);
extern
  __attribute__((__format__ (gnu_printf, 3, 4))) __MINGW_ATTRIB_NONNULL(3)
  int __cdecl __mingw_snprintf(char * __restrict__ s, size_t n, const char * __restrict__  format, ...);
extern
  __attribute__((__format__ (gnu_printf, 1, 2))) __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_printf(const char * __restrict__ , ... ) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 1, 0))) __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_vprintf (const char * __restrict__ , va_list) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_fprintf (FILE * __restrict__ , const char * __restrict__ , ...) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vfprintf (FILE * __restrict__ , const char * __restrict__ , va_list) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_sprintf (char * __restrict__ , const char * __restrict__ , ...) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vsprintf (char * __restrict__ , const char * __restrict__ , va_list) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 3))) __attribute__((nonnull (1,2)))
  int __cdecl __mingw_asprintf(char ** __restrict__ , const char * __restrict__ , ...) __MINGW_NOTHROW;
extern
  __attribute__((__format__ (gnu_printf, 2, 0))) __attribute__((nonnull (1,2)))
  int __cdecl __mingw_vasprintf(char ** __restrict__ , const char * __restrict__ , va_list) __MINGW_NOTHROW;

#if __USE_MINGW_ANSI_STDIO
/*
 * User has expressed a preference for C99 conformance...
 */
#undef __MINGW_PRINTF_FORMAT
#undef __MINGW_SCANF_FORMAT
#define __MINGW_PRINTF_FORMAT gnu_printf
#define __MINGW_SCANF_FORMAT  gnu_scanf

#ifdef _GNU_SOURCE
__mingw_ovr
__attribute__ ((__format__ (gnu_printf, 2, 3))) __attribute__((nonnull (1,2)))
int asprintf(char **__ret, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vasprintf( __ret, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__ ((__format__ (gnu_printf, 2, 0))) __attribute__((nonnull (1,2)))
int vasprintf(char **__ret, const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vasprintf( __ret, __format, __local_argv );
}
#endif /* _GNU_SOURCE */

/* There seems to be a bug about builtins and static overrides of them
   in g++.  So we need to do here some trickery.  */
#ifdef __cplusplus
extern "C++" {
#endif

__mingw_ovr
__attribute__((__format__ (gnu_scanf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
int sscanf(const char *__source, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vsscanf( __source, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_scanf, 1, 2))) __MINGW_ATTRIB_NONNULL(1)
int scanf(const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vscanf( __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_scanf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
int fscanf(FILE *__stream, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vfscanf( __stream, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
__mingw_ovr
__attribute__((__format__ (gnu_scanf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
int vsscanf (const char *__source, const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vsscanf( __source, __format, __local_argv );
}

__mingw_ovr
__attribute__((__format__ (gnu_scanf, 1, 0))) __MINGW_ATTRIB_NONNULL(1)
int vscanf(const char *__format,  __builtin_va_list __local_argv)
{
  return __mingw_vscanf( __format, __local_argv );
}

__mingw_ovr
__attribute__((__format__ (gnu_scanf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
int vfscanf (FILE *__stream,  const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vfscanf( __stream, __format, __local_argv );
}
#endif /* __NO_ISOCEXT */



__mingw_ovr
__attribute__((__format__ (gnu_printf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
int fprintf (FILE *__stream, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vfprintf( __stream, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 1, 2))) __MINGW_ATTRIB_NONNULL(1)
int printf (const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vprintf( __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 2, 3))) __MINGW_ATTRIB_NONNULL(2)
int sprintf (char *__stream, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vsprintf( __stream, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
int vfprintf (FILE *__stream, const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vfprintf( __stream, __format, __local_argv );
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 1, 0))) __MINGW_ATTRIB_NONNULL(1)
int vprintf (const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vprintf( __format, __local_argv );
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 2, 0))) __MINGW_ATTRIB_NONNULL(2)
int vsprintf (char *__stream, const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vsprintf( __stream, __format, __local_argv );
}
/* #ifndef __NO_ISOCEXT */  /* externs in libmingwex.a */
__mingw_ovr
__attribute__((__format__ (gnu_printf, 3, 4))) __MINGW_ATTRIB_NONNULL(3)
int snprintf (char *__stream, size_t __n, const char *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vsnprintf( __stream, __n, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
__attribute__((__format__ (gnu_printf, 3, 0))) __MINGW_ATTRIB_NONNULL(3)
int vsnprintf (char *__stream, size_t __n, const char *__format, __builtin_va_list __local_argv)
{
  return __mingw_vsnprintf( __stream, __n, __format, __local_argv );
}

/* Override __builtin_printf-routines ... Kludge for libstdc++ ...*/
#define __builtin_vsnprintf __mingw_vsnprintf
#define __builtin_vsprintf __mingw_vsprintf

/* #endif */ /* __NO_ISOCEXT */

#ifdef __cplusplus
}
#endif

#else /* !__USE_MINGW_ANSI_STDIO */

#undef __MINGW_PRINTF_FORMAT
#undef __MINGW_SCANF_FORMAT
#define __MINGW_PRINTF_FORMAT ms_printf
#define __MINGW_SCANF_FORMAT  ms_scanf
#undef __builtin_vsnprintf
#undef __builtin_vsprintf

/*
 * Default configuration: simply direct all calls to MSVCRT...
 */
  int __cdecl fprintf(FILE * __restrict__ _File,const char * __restrict__ _Format,...);
  int __cdecl printf(const char * __restrict__ _Format,...);
  int __cdecl sprintf(char * __restrict__ _Dest,const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

  int __cdecl vfprintf(FILE * __restrict__ _File,const char * __restrict__ _Format,va_list _ArgList);
  int __cdecl vprintf(const char * __restrict__ _Format,va_list _ArgList);
  int __cdecl vsprintf(char * __restrict__ _Dest,const char * __restrict__ _Format,va_list _Args) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

  int __cdecl fscanf(FILE * __restrict__ _File,const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl scanf(const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl sscanf(const char * __restrict__ _Src,const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
#ifdef _GNU_SOURCE
  int __cdecl vasprintf(char ** __restrict__ ret,const char * __restrict__ format,va_list ap)  __attribute__ ((format (__MINGW_PRINTF_FORMAT, 2, 0)));;
  int __cdecl asprintf(char ** __restrict__ ret,const char * __restrict__ format,...) __attribute__ ((format (__MINGW_PRINTF_FORMAT, 2, 3)));
#endif /*_GNU_SOURCE*/
#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
  int __cdecl __ms_vscanf(const char * __restrict__ Format, va_list argp);
  int __cdecl __ms_vfscanf (FILE * __restrict__ fp, const char * __restrict__ Format,va_list argp);
  int __cdecl __ms_vsscanf (const char * __restrict__ _Str,const char * __restrict__ Format,va_list argp);

  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(2)
  int vfscanf (FILE *__stream,  const char *__format, __builtin_va_list __local_argv)
  {
    return __ms_vfscanf (__stream, __format, __local_argv);
  }

  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(2)
  int vsscanf (const char * __restrict__ __source, const char * __restrict__ __format, __builtin_va_list __local_argv)
  {
    return __ms_vsscanf( __source, __format, __local_argv );
  }
  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(1)
  int vscanf(const char *__format,  __builtin_va_list __local_argv)
  {
    return __ms_vscanf (__format, __local_argv);
  }

#endif /* __NO_ISOCEXT */
#endif /* __USE_MINGW_ANSI_STDIO */

  _CRTIMP int __cdecl _filbuf(FILE *_File);
  _CRTIMP int __cdecl _flsbuf(int _Ch,FILE *_File);
#ifdef _POSIX_
  _CRTIMP FILE *__cdecl _fsopen(const char *_Filename,const char *_Mode);
#else
  _CRTIMP FILE *__cdecl _fsopen(const char *_Filename,const char *_Mode,int _ShFlag);
#endif
  void __cdecl clearerr(FILE *_File);
  int __cdecl fclose(FILE *_File);
  _CRTIMP int __cdecl _fcloseall(void);
#ifdef _POSIX_
  FILE *__cdecl fdopen(int _FileHandle,const char *_Mode) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
#else
  _CRTIMP FILE *__cdecl _fdopen(int _FileHandle,const char *_Mode);
#endif
  int __cdecl feof(FILE *_File);
  int __cdecl ferror(FILE *_File);
  int __cdecl fflush(FILE *_File);
  int __cdecl fgetc(FILE *_File);
  _CRTIMP int __cdecl _fgetchar(void);
  int __cdecl fgetpos(FILE * __restrict__ _File ,fpos_t * __restrict__ _Pos); /* 64bit only, no 32bit version */
  int __cdecl fgetpos64(FILE * __restrict__ _File ,fpos_t * __restrict__ _Pos); /* fgetpos already 64bit */
  char *__cdecl fgets(char * __restrict__ _Buf,int _MaxCount,FILE * __restrict__ _File);
  _CRTIMP int __cdecl _fileno(FILE *_File);
#ifdef _POSIX_
  int __cdecl fileno(FILE *_File) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
#endif
  _CRTIMP char *__cdecl _tempnam(const char *_DirName,const char *_FilePrefix);
  _CRTIMP int __cdecl _flushall(void);
  FILE *__cdecl fopen(const char * __restrict__ _Filename,const char * __restrict__ _Mode) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  FILE *fopen64(const char * __restrict__ filename,const char * __restrict__  mode);
  int __cdecl fputc(int _Ch,FILE *_File);
  _CRTIMP int __cdecl _fputchar(int _Ch);
  int __cdecl fputs(const char * __restrict__ _Str,FILE * __restrict__ _File);
  size_t __cdecl fread(void * __restrict__ _DstBuf,size_t _ElementSize,size_t _Count,FILE * __restrict__ _File);
  FILE *__cdecl freopen(const char * __restrict__ _Filename,const char * __restrict__ _Mode,FILE * __restrict__ _File) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl fsetpos(FILE *_File,const fpos_t *_Pos);
  int __cdecl fsetpos64(FILE *_File,const fpos_t *_Pos); /* fsetpos already 64bit */
  int __cdecl fseek(FILE *_File,long _Offset,int _Origin);

  /* Shouldn't be any fseeko32 in glibc, 32bit to 64bit casting should be fine */
  /* int fseeko32(FILE* stream, _off_t offset, int whence);*/ /* fseeko32 redirects to fseeko64 */
  int fseeko64(FILE* stream, _off64_t offset, int whence);
  int fseeko(FILE* stream, _off_t offset, int whence);

#ifndef _FILE_OFFSET_BITS_SET_FSEEKO
#define _FILE_OFFSET_BITS_SET_FSEEKO
#if (defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64))
#define fseeko fseeko64
#endif /* (defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)) */
#endif /* _FILE_OFFSET_BITS_SET_FSEEKO */

  long __cdecl ftell(FILE *_File);
  /* Returns truncated 64bit off_t */
  _off_t ftello(FILE * stream);
  _off64_t ftello64(FILE * stream);

#ifndef _FILE_OFFSET_BITS_SET_FTELLO
#define _FILE_OFFSET_BITS_SET_FTELLO
#if (defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64))
#define ftello ftello64
#endif /* (defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)) */
#endif /* _FILE_OFFSET_BITS_SET_FTELLO */

  __MINGW_EXTENSION int __cdecl _fseeki64(FILE *_File,__int64 _Offset,int _Origin);
  __MINGW_EXTENSION __int64 __cdecl _ftelli64(FILE *_File);
  size_t __cdecl fwrite(const void * __restrict__ _Str,size_t _Size,size_t _Count,FILE * __restrict__ _File);
  int __cdecl getc(FILE *_File);
  int __cdecl getchar(void);
  _CRTIMP int __cdecl _getmaxstdio(void);
  char *__cdecl gets(char *_Buffer) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl _getw(FILE *_File);
#ifndef _CRT_PERROR_DEFINED
#define _CRT_PERROR_DEFINED
  void __cdecl perror(const char *_ErrMsg);
#endif
  _CRTIMP int __cdecl _pclose(FILE *_File);
  _CRTIMP FILE *__cdecl _popen(const char *_Command,const char *_Mode);
#if !defined(NO_OLDNAMES) && !defined(popen)
#define popen	_popen
#define pclose	_pclose
#endif
  int __cdecl putc(int _Ch,FILE *_File);
  int __cdecl putchar(int _Ch);
  int __cdecl puts(const char *_Str);
  _CRTIMP int __cdecl _putw(int _Word,FILE *_File);
#ifndef _CRT_DIRECTORY_DEFINED
#define _CRT_DIRECTORY_DEFINED
  int __cdecl remove(const char *_Filename);
  int __cdecl rename(const char *_OldFilename,const char *_NewFilename);
  _CRTIMP int __cdecl _unlink(const char *_Filename);
#ifndef	NO_OLDNAMES
  int __cdecl unlink(const char *_Filename) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
#endif
#endif
  void __cdecl rewind(FILE *_File);
  _CRTIMP int __cdecl _rmtmp(void);
  void __cdecl setbuf(FILE * __restrict__ _File,char * __restrict__ _Buffer) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  _CRTIMP int __cdecl _setmaxstdio(int _Max);
  _CRTIMP unsigned int __cdecl _set_output_format(unsigned int _Format);
  _CRTIMP unsigned int __cdecl _get_output_format(void);
  int __cdecl setvbuf(FILE * __restrict__ _File,char * __restrict__ _Buf,int _Mode,size_t _Size);
  _CRTIMP int __cdecl _scprintf(const char * __restrict__ _Format,...);
  _CRTIMP int __cdecl _snscanf(const char * __restrict__ _Src,size_t _MaxCount,const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  FILE *__cdecl tmpfile(void) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  char *__cdecl tmpnam(char *_Buffer);
  int __cdecl ungetc(int _Ch,FILE *_File);

  _CRTIMP int __cdecl _snprintf(char * __restrict__ _Dest,size_t _Count,const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  _CRTIMP int __cdecl _vsnprintf(char * __restrict__ _Dest,size_t _Count,const char * __restrict__ _Format,va_list _Args) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

#if !defined (__USE_MINGW_ANSI_STDIO) || __USE_MINGW_ANSI_STDIO == 0
/* this is here to deal with software defining
 * vsnprintf as _vsnprintf, eg. libxml2.  */
#pragma push_macro("snprintf")
#pragma push_macro("vsnprintf")
# undef snprintf
# undef vsnprintf
  int __cdecl __ms_vsnprintf(char * __restrict__ d,size_t n,const char * __restrict__ format,va_list arg)
    __MINGW_ATTRIB_DEPRECATED_MSVC2005 __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(3)
  int vsnprintf (char * __restrict__ __stream, size_t __n, const char * __restrict__ __format, va_list __local_argv)
  {
    return __ms_vsnprintf (__stream, __n, __format, __local_argv);
  }

  int __cdecl __ms_snprintf(char * __restrict__ s, size_t n, const char * __restrict__  format, ...);

#ifndef __NO_ISOCEXT
__mingw_ovr
__MINGW_ATTRIB_NONNULL(3)
int snprintf (char * __restrict__ __stream, size_t __n, const char * __restrict__ __format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __ms_vsnprintf (__stream, __n, __format, __local_argv);
  __builtin_va_end( __local_argv );
  return __retval;
}
#endif /* !__NO_ISOCEXT */

#pragma pop_macro ("vsnprintf")
#pragma pop_macro ("snprintf")
#endif

  _CRTIMP int __cdecl _vscprintf(const char * __restrict__ _Format,va_list _ArgList);
  _CRTIMP int __cdecl _set_printf_count_output(int _Value);
  _CRTIMP int __cdecl _get_printf_count_output(void);

#ifndef _WSTDIO_DEFINED
#define _WSTDIO_DEFINED

/* __attribute__((__format__ (gnu_wscanf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_swscanf(const wchar_t * __restrict__ _Src,const wchar_t * __restrict__ _Format,...);
/* __attribute__((__format__ (gnu_wscanf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vswscanf (const wchar_t * __restrict__ _Str,const wchar_t * __restrict__ Format,va_list argp);
/* __attribute__((__format__ (gnu_wscanf, 1, 2))) */ __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_wscanf(const wchar_t * __restrict__ _Format,...);
/* __attribute__((__format__ (gnu_wscanf, 1, 0))) */ __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_vwscanf(const wchar_t * __restrict__ Format, va_list argp);
/* __attribute__((__format__ (gnu_wscanf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_fwscanf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,...);
/* __attribute__((__format__ (gnu_wscanf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vfwscanf (FILE * __restrict__ fp, const wchar_t * __restrict__ Format,va_list argp);

/* __attribute__((__format__ (gnu_wprintf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_fwprintf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,...);
/* __attribute__((__format__ (gnu_wprintf, 1, 2))) */ __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_wprintf(const wchar_t * __restrict__ _Format,...);
/* __attribute__((__format__ (gnu_wprintf, 2, 0))) */__MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vfwprintf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,va_list _ArgList);
/*__attribute__((__format__ (gnu_wprintf, 1, 0))) */ __MINGW_ATTRIB_NONNULL(1)
  int __cdecl __mingw_vwprintf(const wchar_t * __restrict__ _Format,va_list _ArgList);
/* __attribute__((__format__ (gnu_wprintf, 3, 4))) */ __MINGW_ATTRIB_NONNULL(3)
  int __cdecl __mingw_snwprintf (wchar_t * __restrict__ s, size_t n, const wchar_t * __restrict__ format, ...);
/* __attribute__((__format__ (gnu_wprintf, 3, 0))) */ __MINGW_ATTRIB_NONNULL(3)
  int __cdecl __mingw_vsnwprintf (wchar_t * __restrict__ , size_t, const wchar_t * __restrict__ , va_list);
/* __attribute__((__format__ (gnu_wprintf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_swprintf(wchar_t * __restrict__ , const wchar_t * __restrict__ , ...);
/* __attribute__((__format__ (gnu_wprintf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
  int __cdecl __mingw_vswprintf(wchar_t * __restrict__ , const wchar_t * __restrict__ ,va_list);

#if __USE_MINGW_ANSI_STDIO
/*
 * User has expressed a preference for C99 conformance...
 */

__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
int swscanf(const wchar_t *__source, const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vswscanf( __source, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 1, 2))) */ __MINGW_ATTRIB_NONNULL(1)
int wscanf(const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vwscanf( __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
int fwscanf(FILE *__stream, const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vfwscanf( __stream, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
int vswscanf (const wchar_t * __restrict__ __source, const wchar_t * __restrict__ __format, __builtin_va_list __local_argv)
{
  return __mingw_vswscanf( __source, __format, __local_argv );
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 1, 0))) */ __MINGW_ATTRIB_NONNULL(1)
int vwscanf(const wchar_t *__format,  __builtin_va_list __local_argv)
{
  return __mingw_vwscanf( __format, __local_argv );
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wscanf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
int vfwscanf (FILE *__stream,  const wchar_t *__format, __builtin_va_list __local_argv)
{
  return __mingw_vfwscanf( __stream, __format, __local_argv );
}
#endif /* __NO_ISOCEXT */



__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 2, 3))) */ __MINGW_ATTRIB_NONNULL(2)
int fwprintf (FILE *__stream, const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vfwprintf( __stream, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 1, 2))) */ __MINGW_ATTRIB_NONNULL(1)
int wprintf (const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vwprintf( __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 2, 0))) */ __MINGW_ATTRIB_NONNULL(2)
int vfwprintf (FILE *__stream, const wchar_t *__format, __builtin_va_list __local_argv)
{
  return __mingw_vfwprintf( __stream, __format, __local_argv );
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 1, 0))) */ __MINGW_ATTRIB_NONNULL(1)
int vwprintf (const wchar_t *__format, __builtin_va_list __local_argv)
{
  return __mingw_vwprintf( __format, __local_argv );
}

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 3, 4))) */ __MINGW_ATTRIB_NONNULL(3)
int snwprintf (wchar_t *__stream, size_t __n, const wchar_t *__format, ...)
{
  register int __retval;
  __builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
  __retval = __mingw_vsnwprintf( __stream, __n, __format, __local_argv );
  __builtin_va_end( __local_argv );
  return __retval;
}

__mingw_ovr
/* __attribute__((__format__ (gnu_wprintf, 3, 0))) */ __MINGW_ATTRIB_NONNULL(3)
int vsnwprintf (wchar_t *__stream, size_t __n, const wchar_t *__format, __builtin_va_list __local_argv)
{
  return __mingw_vsnwprintf( __stream, __n, __format, __local_argv );
}
#endif /* __NO_ISOCEXT */

#else /* !__USE_MINGW_ANSI_STDIO */

  int __cdecl fwscanf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl swscanf(const wchar_t * __restrict__ _Src,const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  int __cdecl wscanf(const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
  int __cdecl __ms_vwscanf (const wchar_t * __restrict__ , va_list);
  int __cdecl __ms_vfwscanf (FILE * __restrict__ ,const wchar_t * __restrict__ ,va_list);
  int __cdecl __ms_vswscanf (const wchar_t * __restrict__ ,const wchar_t * __restrict__ ,va_list);

  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(2)
  int vfwscanf (FILE *__stream,  const wchar_t *__format, __builtin_va_list __local_argv)
  {
    return __ms_vfwscanf (__stream, __format, __local_argv);
  }

  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(2)
  int vswscanf (const wchar_t * __restrict__ __source, const wchar_t * __restrict__ __format, __builtin_va_list __local_argv)
  {
    return __ms_vswscanf( __source, __format, __local_argv );
  }
  __mingw_ovr
  __MINGW_ATTRIB_NONNULL(1)
  int vwscanf(const wchar_t *__format,  __builtin_va_list __local_argv)
  {
    return __ms_vwscanf (__format, __local_argv);
  }

#endif /* __NO_ISOCEXT */

  int __cdecl fwprintf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,...);
  int __cdecl wprintf(const wchar_t * __restrict__ _Format,...);
  int __cdecl vfwprintf(FILE * __restrict__ _File,const wchar_t * __restrict__ _Format,va_list _ArgList);
  int __cdecl vwprintf(const wchar_t * __restrict__ _Format,va_list _ArgList);
#endif /* __USE_MINGW_ANSI_STDIO */

#ifndef WEOF
#define WEOF (wint_t)(0xFFFF)
#endif

#ifdef _POSIX_
  _CRTIMP FILE *__cdecl _wfsopen(const wchar_t *_Filename,const wchar_t *_Mode);
#else
  _CRTIMP FILE *__cdecl _wfsopen(const wchar_t *_Filename,const wchar_t *_Mode,int _ShFlag);
#endif

  wint_t __cdecl fgetwc(FILE *_File);
  _CRTIMP wint_t __cdecl _fgetwchar(void);
  wint_t __cdecl fputwc(wchar_t _Ch,FILE *_File);
  _CRTIMP wint_t __cdecl _fputwchar(wchar_t _Ch);
  wint_t __cdecl getwc(FILE *_File);
  wint_t __cdecl getwchar(void);
  wint_t __cdecl putwc(wchar_t _Ch,FILE *_File);
  wint_t __cdecl putwchar(wchar_t _Ch);
  wint_t __cdecl ungetwc(wint_t _Ch,FILE *_File);
  wchar_t *__cdecl fgetws(wchar_t * __restrict__ _Dst,int _SizeInWords,FILE * __restrict__ _File);
  int __cdecl fputws(const wchar_t * __restrict__ _Str,FILE * __restrict__ _File);
  _CRTIMP wchar_t *__cdecl _getws(wchar_t *_String) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  _CRTIMP int __cdecl _putws(const wchar_t *_Str);

  _CRTIMP int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...);
  _CRTIMP int __cdecl _swprintf_c(wchar_t * __restrict__ _DstBuf,size_t _SizeInWords,const wchar_t * __restrict__ _Format,...);
  _CRTIMP int __cdecl _vswprintf_c(wchar_t * __restrict__ _DstBuf,size_t _SizeInWords,const wchar_t * __restrict__ _Format,va_list _ArgList);
  _CRTIMP int __cdecl _snwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  _CRTIMP int __cdecl _vsnwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,va_list _Args) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */

#if !defined (__USE_MINGW_ANSI_STDIO) || __USE_MINGW_ANSI_STDIO == 0
#pragma push_macro("snwprintf")
#pragma push_macro("vsnwprintf")
# undef snwprintf
# undef vsnwprintf
  int __cdecl __ms_snwprintf (wchar_t * __restrict__ s, size_t n, const wchar_t * __restrict__ format, ...);
  int __cdecl __ms_vsnwprintf (wchar_t * __restrict__ , size_t, const wchar_t * __restrict__ , va_list);
  __mingw_ovr
  int snwprintf (wchar_t * __restrict__ s, size_t n, const wchar_t * __restrict__ format, ...)
  {
    int r;
    va_list argp;
    __builtin_va_start (argp, format);
    r = _vsnwprintf (s, n, format, argp);
    __builtin_va_end (argp);
    return r;
  }
  __mingw_ovr
  int __cdecl vsnwprintf (wchar_t * __restrict__ s, size_t n, const wchar_t * __restrict__ format, va_list arg)
  {
    return _vsnwprintf(s,n,format,arg);
  }
#pragma pop_macro ("vsnwprintf")
#pragma pop_macro ("snwprintf")
#endif

#endif /* ! __NO_ISOCEXT */
  _CRTIMP int __cdecl _swprintf(wchar_t * __restrict__ _Dest,const wchar_t * __restrict__ _Format,...);
  _CRTIMP int __cdecl _vswprintf(wchar_t * __restrict__ _Dest,const wchar_t * __restrict__ _Format,va_list _Args);

#ifndef RC_INVOKED
#include <swprintf.inl>
#endif

#ifdef _CRT_NON_CONFORMING_SWPRINTFS
#ifndef __cplusplus
#define _swprintf_l __swprintf_l
#define _vswprintf_l __vswprintf_l
#endif
#endif

  _CRTIMP wchar_t *__cdecl _wtempnam(const wchar_t *_Directory,const wchar_t *_FilePrefix);
  _CRTIMP int __cdecl _vscwprintf(const wchar_t * __restrict__ _Format,va_list _ArgList);
  _CRTIMP int __cdecl _snwscanf(const wchar_t * __restrict__ _Src,size_t _MaxCount,const wchar_t * __restrict__ _Format,...);
  _CRTIMP FILE *__cdecl _wfdopen(int _FileHandle ,const wchar_t *_Mode);
  _CRTIMP FILE *__cdecl _wfopen(const wchar_t * __restrict__ _Filename,const wchar_t *__restrict__  _Mode) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
  _CRTIMP FILE *__cdecl _wfreopen(const wchar_t * __restrict__ _Filename,const wchar_t * __restrict__ _Mode,FILE * __restrict__ _OldFile) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;

#ifndef _CRT_WPERROR_DEFINED
#define _CRT_WPERROR_DEFINED
  _CRTIMP void __cdecl _wperror(const wchar_t *_ErrMsg);
#endif
  _CRTIMP FILE *__cdecl _wpopen(const wchar_t *_Command,const wchar_t *_Mode);
#if !defined(NO_OLDNAMES) && !defined(wpopen)
#define wpopen	_wpopen
#endif

  _CRTIMP int __cdecl _wremove(const wchar_t *_Filename);
  _CRTIMP wchar_t *__cdecl _wtmpnam(wchar_t *_Buffer);
  _CRTIMP wint_t __cdecl _fgetwc_nolock(FILE *_File);
  _CRTIMP wint_t __cdecl _fputwc_nolock(wchar_t _Ch,FILE *_File);
  _CRTIMP wint_t __cdecl _ungetwc_nolock(wint_t _Ch,FILE *_File);

#undef _CRT_GETPUTWCHAR_NOINLINE

#if !defined(__cplusplus) || defined(_CRT_GETPUTWCHAR_NOINLINE) || defined (__CRT__NO_INLINE)
#define getwchar() fgetwc(stdin)
#define putwchar(_c) fputwc((_c),stdout)
#else
  __CRT_INLINE wint_t __cdecl getwchar() {return (fgetwc(stdin)); }
  __CRT_INLINE wint_t __cdecl putwchar(wchar_t _C) {return (fputwc(_C,stdout)); }
#endif

#define getwc(_stm) fgetwc(_stm)
#define putwc(_c,_stm) fputwc(_c,_stm)
#define _putwc_nolock(_c,_stm) _fputwc_nolock(_c,_stm)
#define _getwc_nolock(_c) _fgetwc_nolock(_c)
#endif

#define _STDIO_DEFINED
#endif

#define _fgetc_nolock(_stream) (--(_stream)->_cnt >= 0 ? 0xff & *(_stream)->_ptr++ : _filbuf(_stream))
#define _fputc_nolock(_c,_stream) (--(_stream)->_cnt >= 0 ? 0xff & (*(_stream)->_ptr++ = (char)(_c)) : _flsbuf((_c),(_stream)))
#define _getc_nolock(_stream) _fgetc_nolock(_stream)
#define _putc_nolock(_c,_stream) _fputc_nolock(_c,_stream)
#define _getchar_nolock() _getc_nolock(stdin)
#define _putchar_nolock(_c) _putc_nolock((_c),stdout)
#define _getwchar_nolock() _getwc_nolock(stdin)
#define _putwchar_nolock(_c) _putwc_nolock((_c),stdout)

  _CRTIMP void __cdecl _lock_file(FILE *_File);
  _CRTIMP void __cdecl _unlock_file(FILE *_File);
  _CRTIMP int __cdecl _fclose_nolock(FILE *_File);
  _CRTIMP int __cdecl _fflush_nolock(FILE *_File);
  _CRTIMP size_t __cdecl _fread_nolock(void * __restrict__ _DstBuf,size_t _ElementSize,size_t _Count,FILE * __restrict__ _File);
  _CRTIMP int __cdecl _fseek_nolock(FILE *_File,long _Offset,int _Origin);
  _CRTIMP long __cdecl _ftell_nolock(FILE *_File);
  __MINGW_EXTENSION _CRTIMP int __cdecl _fseeki64_nolock(FILE *_File,__int64 _Offset,int _Origin);
  __MINGW_EXTENSION _CRTIMP __int64 __cdecl _ftelli64_nolock(FILE *_File);
  _CRTIMP size_t __cdecl _fwrite_nolock(const void * __restrict__ _DstBuf,size_t _Size,size_t _Count,FILE * __restrict__ _File);
  _CRTIMP int __cdecl _ungetc_nolock(int _Ch,FILE *_File);

#if !defined(NO_OLDNAMES) || !defined(_POSIX)
#define P_tmpdir _P_tmpdir
#define SYS_OPEN _SYS_OPEN

  char *__cdecl tempnam(const char *_Directory,const char *_FilePrefix) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl fcloseall(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  FILE *__cdecl fdopen(int _FileHandle,const char *_Format) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl fgetchar(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl fileno(FILE *_File) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl flushall(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl fputchar(int _Ch) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl getw(FILE *_File) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl putw(int _Ch,FILE *_File) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
  int __cdecl rmtmp(void) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
#endif

#ifndef __MINGW_MBWC_CONVERT_DEFINED
#define __MINGW_MBWC_CONVERT_DEFINED

/**
 * __mingw_str_wide_utf8
 * Converts a null terminated UCS-2 string to a multibyte (UTF-8) equivalent.
 * Caller is supposed to free allocated buffer with __mingw_str_free().
 * @param[in] wptr Pointer to wide string.
 * @param[out] mbptr Pointer to multibyte string.
 * @param[out] buflen Optional parameter for length of allocated buffer.
 * @return Number of characters converted, 0 for failure.
 *
 * WideCharToMultiByte - http://msdn.microsoft.com/en-us/library/dd374130(VS.85).aspx
 */
int __cdecl __mingw_str_wide_utf8 (const wchar_t * const wptr, char **mbptr, size_t * buflen);

/**
 * __mingw_str_utf8_wide
 * Converts a null terminated UTF-8 string to a UCS-2 equivalent.
 * Caller is supposed to free allocated buffer with __mingw_str_free().
 * @param[out] mbptr Pointer to multibyte string.
 * @param[in] wptr Pointer to wide string.
 * @param[out] buflen Optional parameter for length of allocated buffer.
 * @return Number of characters converted, 0 for failure.
 *
 * MultiByteToWideChar - http://msdn.microsoft.com/en-us/library/dd319072(VS.85).aspx
 */

int __cdecl __mingw_str_utf8_wide (const char *const mbptr, wchar_t ** wptr, size_t * buflen);

/**
 * __mingw_str_free
 * Frees buffer create by __mingw_str_wide_utf8 and __mingw_str_utf8_wide.
 * @param[in] ptr memory block to free.
 *
 */

void __cdecl __mingw_str_free(void *ptr);

#endif /* __MINGW_MBWC_CONVERT_DEFINED */

#ifdef __cplusplus
}
#endif

#pragma pack(pop)

#include <sec_api/stdio_s.h>

#include <_mingw_print_pop.h>

#endif

头文件库

#include<iostream>
// Standard iostream objects -*- C++ -*-

// Copyright (C) 1997-2014 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file include/iostream
 *  This is a Standard C++ Library header.
 */

//
// ISO C++ 14882: 27.3  Standard iostream objects
//

#ifndef _GLIBCXX_IOSTREAM
#define _GLIBCXX_IOSTREAM 1

#pragma GCC system_header

#include <bits/c++config.h>
#include <ostream>
#include <istream>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  /**
   *  @name Standard Stream Objects
   *
   *  The &lt;iostream&gt; header declares the eight <em>standard stream
   *  objects</em>.  For other declarations, see
   *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html
   *  and the @link iosfwd I/O forward declarations @endlink
   *
   *  They are required by default to cooperate with the global C
   *  library's @c FILE streams, and to be available during program
   *  startup and termination. For more information, see the section of the
   *  manual linked to above.
  */
  //@{
  extern istream cin;		/// Linked to standard input
  extern ostream cout;		/// Linked to standard output
  extern ostream cerr;		/// Linked to standard error (unbuffered)
  extern ostream clog;		/// Linked to standard error (buffered)

#ifdef _GLIBCXX_USE_WCHAR_T
  extern wistream wcin;		/// Linked to standard input
  extern wostream wcout;	/// Linked to standard output
  extern wostream wcerr;	/// Linked to standard error (unbuffered)
  extern wostream wclog;	/// Linked to standard error (buffered)
#endif
  //@}

  // For construction of filebuffers for cout, cin, cerr, clog et. al.
  static ios_base::Init __ioinit;

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif /* _GLIBCXX_IOSTREAM */
using namespace std;
int a,b; 
int main(){
	cin>>a>>b;
	if(a>b){
		cout<<">";
	}
	else if(a<b){
		cout<<"<";
	}
	else{
		cout<<"=";
	}
	return 0; 
}