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/* { dg-do compile } */

namespace std __attribute__ ((__visibility__ ("default"))) {

    template     struct char_traits;

  }

__extension__ typedef __PTRDIFF_TYPE__ ptrdiff_t;

namespace std __attribute__ ((__visibility__ ("default"))) {

    typedef ptrdiff_t streamsize;

    template >     class basic_ifstream;

    typedef basic_ifstream ifstream;

    class ios_base   {

    };

  }

template class Vector4 {

   public:

      inline Vector4();

      inline Vector4(T, T, T, T);

      T x, y, z, w;

  };

template class Matrix4 {

   public:

      Matrix4(const Vector4&, const Vector4&,             const Vector4&, const Vector4&);

      Matrix4(const Matrix4& m);

      Vector4 r[4];

  };

typedef Vector4 Vec4f;

typedef Matrix4 Mat4f;

template Vector4::Vector4() : x(0), y(0), z(0), w(0) {

  }

template Vector4::Vector4(T _x, T _y, T _z, T _w) :     x(_x), y(_y), z(_z), w(_w) {

  }

template Matrix4::Matrix4(const Vector4& v0,                                       const Vector4& v1,                                       const Vector4& v2,                                       const Vector4& v3) {

  }

namespace std __attribute__ ((__visibility__ ("default"))) {

    template     class basic_ios : public ios_base     {

      };

    template     class basic_istream : virtual public basic_ios<_CharT, _Traits>     {

      public:

        typedef _CharT char_type;

        typedef basic_istream<_CharT, _Traits> __istream_type;

        __istream_type&       read(char_type* __s, streamsize __n);

      };

    template     class basic_ifstream : public basic_istream<_CharT, _Traits>     {

      };

  }

using namespace std;

static float readFloat(ifstream& in) {

      float f;

      in.read((char*) &f, sizeof(float));

  }

Mat4f readMeshMatrix(ifstream& in, int nBytes) {

      float m00 = readFloat(in);

      float m01 = readFloat(in);

      float m02 = readFloat(in);

      float m10 = readFloat(in);

      float m11 = readFloat(in);

      float m12 = readFloat(in);

      float m20 = readFloat(in);

      float m21 = readFloat(in);

      float m22 = readFloat(in);

      float m30 = readFloat(in);

      float m31 = readFloat(in);

      float m32 = readFloat(in);

      return Mat4f(Vec4f(m00, m01, m02, 0),                  Vec4f(m10, m11, m12, 0),                  Vec4f(m20, m21, m22, 0),                  Vec4f(m30, m31, m32, 1));

  }