c++, std::count, std::string och std::vector. @linux

int countp(vector<person> &v)
{
        string temp_search;
        cout << "Skriv in de namn eller del av\n"
             << "namn du söker antalet på." << endl;
        cin >> temp_search;
        string temp_name;
        int temp, p_count;
        for(int i = 0; i<v.size(); i++)
        {
                temp_name=v[i].name;
                temp = count(temp_name.begin(), temp_name.end(), temp_search);
                p_count=p_count+temp;
        }
        cout << "Hitta med din sökning är: " << p_count << endl;
        return 0;
}

In file included from /usr/include/c++/4.6/algorithm:63:0,
                 from using.h:7,
                 from personSearch.cpp:1:
/usr/include/c++/4.6/bits/stl_algo.h: In function ‘typename std::iterator_traits<_InputIterator>::difference_type std::count(_IIter, _IIter, const _Tp&) [with _IIter = __gnu_cxx::__normal_iterator<char*, std::basic_string<char> >, _Tp = std::basic_string<char>, typename std::iterator_traits<_InputIterator>::difference_type = long int]’:
personSearch.cpp:15:63:   instantiated from here
/usr/include/c++/4.6/bits/stl_algo.h:4591:2: error: no match for ‘operator==’ in ‘__first.__gnu_cxx::__normal_iterator<_Iterator, _Container>::operator* [with _Iterator = char*, _Container = std::basic_string<char>, __gnu_cxx::__normal_iterator<_Iterator, _Container>::reference = char&]() == __value’
/usr/include/c++/4.6/bits/stl_algo.h:4591:2: note: candidates are:
/usr/include/c++/4.6/bits/stl_pair.h:201:5: note: template<class _T1, class _T2> bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
/usr/include/c++/4.6/bits/stl_iterator.h:285:5: note: template<class _Iterator> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
/usr/include/c++/4.6/bits/stl_iterator.h:335:5: note: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&)
/usr/include/c++/4.6/bits/postypes.h:218:5: note: template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
/usr/include/c++/4.6/bits/allocator.h:122:5: note: template<class _T1, class _T2> bool std::operator==(const std::allocator<_T1>&, const std::allocator<_T2>&)
/usr/include/c++/4.6/bits/allocator.h:127:5: note: template<class _Tp> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_Tp1>&)
/usr/include/c++/4.6/bits/basic_string.h:2427:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
/usr/include/c++/4.6/bits/basic_string.h:2434:5: note: template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::basic_string<_CharT>&, const std::basic_string<_CharT>&)
/usr/include/c++/4.6/bits/basic_string.h:2448:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
/usr/include/c++/4.6/bits/basic_string.h:2460:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
/usr/include/c++/4.6/bits/streambuf_iterator.h:194:5: note: template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)
/usr/include/c++/4.6/bits/stl_vector.h:1273:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
/usr/include/c++/4.6/ext/new_allocator.h:123:5: note: template<class _Tp> bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<_Tp>&, const __gnu_cxx::new_allocator<_Tp>&)
/usr/include/c++/4.6/bits/stl_iterator.h:805:5: note: template<class _Iterator, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)
/usr/include/c++/4.6/bits/stl_iterator.h:799:5: note: template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)
make: *** [comp] Error 1

temp = count(temp_name.begin(), temp_name.end(), temp_search);

#include "using.h"
#include "person.h"
#include "funktions.h"

int findperson(vector<person> &v)
{
        string temp_name;
        string temp_search;
        cin >> temp_search;
        temp_search=lower(temp_search);
        int j=0;
        for(int i=0; i < v.size(); i++)
        {
                temp_name=v[i].name;
                temp_name=lower(temp_name);
                if(temp_name.find(temp_search) != string::npos)
                {
                        j++;
                }
        }

        return j;
}