_Integral
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InIter>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
typedef __false_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;
typedef __true_type _Integral;