String declaration in class definition
 

I'm trying to create class/header for my program which should calculate distanaces between cities declared by array "use" plus arrays of there coordinates as you see in code below

// file line.h



#ifndef LINE_H

#define LINE_H

const int cities = 6;



class Line

{

 private:

  string use[] = {"Phoenix", "Baton Rouge", "Bismark", "Columbia", "Olympia", "Springfield"};     //predefined parameters name of cities

  int x[] = {380, 890, 650, 1140, 70, 920};                                                         // x coordinate of each city

  int y[] = {280, 180, 690, 300, 700, 470};                                                         // y coordinate of each city



  string dest[] = {"Phoenix"};                   //cities which been used in calculation, as a target city and starting city

  int dist[];                                    //calculated distanced between cities



  int possition[] = {0, 1, 2, 3, 4, 5};          //to be use for swap function, after swaping to find city with shortest distatce from start city

  int calc[];                                    //array to hold temporary distances

  int x1;

  int x2;

  int y1;

  int y2;



 public:

  Line();

  void calculate();

  void find();

  bool notInDest();

  void sort();

  void swap();

  void smallest();

  void display();

};



#endif;

I created prototypes of functions in cc program and tryed to compile, but got this error messages

line.h:10: syntax error before `['

line.h:10: missing ';' before right brace

line.h:14: syntax error before `['

line.h:24: parse error before `public'

line.h:33: parse error before `}'

line.cc:6: definition of implicitly-declared `Line::Line()'

line.cc:6: declaration of `Line::Line()' outside of class is not definition

line.cc:9: no `void Line::find()' member function declared in class `Line'

line.cc:12: parse error before `bool'

line.cc:16: parse error before `void'

line.cc:20: parse error before `void'

line.cc:24: parse error before `void'

line.h:15: storage size of `dist' isn't known

line.h:18: storage size of `calc' isn't known

My main concern is the declaration of string use and dest. Can you please explain me what I did wrong?

Re: String declaration in class definition
 

1) You need to include <string> because you try to use the string class.
2) You need to qualify each use of string with std::.
3) You can't initialize arrays in a class declaration.
4) Because of 3, you must supply a size for the arrays.