c++ - Store strings in a vector and sort them -


i want make class stores strings console in vector , sorts them alphabetically using selection sort. code far.

#include<iostream> #include<string> #include<vector> #include<algorithm>  using namespace std;  class dictionary { public:     dictionary();     void read(vector<int>&words);    void selectionsort(vector <int> &num); private:     //vector<string> line_vector;     string word;     //vector<string> words;  };  dictionary:: dictionary() {     //line_vector = "<empty>";     string word = "<empty>"; }  void dictionary:: read(vector<int>& words) {     //vector<string> words;     string word;     while( cin >> word ) words.push_back(word); }   //////////////////////////////////////////////////////////////////////////////////// void dictionary:: selectionsort(vector <int> &num) {       int i, j, first, temp;       int numlength = num.size( );       (i= numlength - 1; > 0; i--)      {            first = 0;                 // initialize subscript of first element            (j=1; j<=i; j++)   // locate smallest between positions 1 , i.           {                  if (num[j] < num[first])                  first = j;           }          temp = num[first];   // swap smallest found element in position i.          num[first] = num[i];          num[i] = temp;      }      return; }   void print(vector<dictionary>& a) {     (int = 0; < a.size(); i++)         cout << a[i];     cout << "\n"; } ///////////////////////////////////////////////////////////////////////////////////////////////////// int main() {     dictionary dict;     vector<dictionary> str;     dict.read(str);     dict.selectionsort(str);     dict.print(str);      return 0; }

and these errors:

in member function 'void dictionary::read(std::vector<int>&)': 31:46: error: no matching function call 'std::vector<int>::push_back(std::string&)' 31:46: note: candidates are: in file included /usr/include/c++/4.9/vector:64:0,                  3: /usr/include/c++/4.9/bits/stl_vector.h:913:7: note: void std::vector<_tp, _alloc>::push_back(const value_type&) [with _tp = int; _alloc = std::allocator<int>; std::vector<_tp, _alloc>::value_type = int]        push_back(const value_type& __x)        ^ /usr/include/c++/4.9/bits/stl_vector.h:913:7: note:   no known conversion argument 1 'std::string {aka std::basic_string<char>}' 'const value_type& {aka const int&}' /usr/include/c++/4.9/bits/stl_vector.h:931:7: note: void std::vector<_tp, _alloc>::push_back(std::vector<_tp, _alloc>::value_type&&) [with _tp = int; _alloc = std::allocator<int>; std::vector<_tp, _alloc>::value_type = int]        push_back(value_type&& __x)        ^

one of error lines seems helpful:

/usr/include/c++/4.9/bits/stl_vector.h:913:7: note: no known conversion argument 1  'std::string {aka std::basic_string<char>}'   'const value_type& {aka const int&}'

if pass argument doesn't match expected type function, c++ try find conversion passed type expected type. conversion include 1-argument constructors , cast operators. see http://www.cplusplus.com/doc/tutorial/typecasting/

this particular error indicating passed argument cannot converted int.


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