check_true(__LINE__, std::abs(r[i] - foo(a1[i])) < 1.e-6);
check_true(__LINE__, fn::absolute(r[i] - foo(a1[i])) < 1.e-6);
  void exercise_apply(ArrayType1 const& a1, ArrayType2 const&)  {#if !(defined(BOOST_MSVC) && BOOST_MSVC <= 1200) // VC++ 6.0    ArrayType2 r = af::apply(boost::bind(foo, _1), a1);    for(std::size_t i=0;i<a1.size();i++) {      check_true(__LINE__, std::abs(r[i] - foo(a1[i])) < 1.e-6);    }#endif  }