I am trying to compile this c++ program but getting this error can somone help m

ID: 3899324 • Letter: I

Question

I am trying to compile this c++ program but getting this error can somone help me ?

#include<iostream>

#include<string>

#include <iomanip>

#include<sstream>

#include<string.h>

#include<stdlib.h>

using namespace std;

class Runway

{

public:

Runway(std::string s);

std::string site_number(void) const;

std::string name(void) const;

int length(void) const;

private:

int convert_length(std::string s) const;

const std::string site_number_;

const std::string name_;

const int length_;

};

Runway::Runway(string s){

char *ch = strtok((char *)s.c_str()," ");

const string site = ch;

const string name = strtok(NULL," ");

const int length = atoi(strtok(NULL," "));

site_number_ = site;

name_ = name;

length_ = length;

}

string Runway::site_number(void)const{

return site_number_;

}

string Runway::name(void)const{

return name_;

}

int Runway::length(void)const{

return length_;

}

int Runway::convert_length(string s) const{

return atoi((char *)s.c_str());

}

/*testRunway.cpp*/

int main()

{

string line;

getline(cin,line);

Runway r(line);

cout << r.site_number() << " " << r.name() << " "

<< setw(8) << r.length() << endl;

}

Runway: :Runway (string s)t Constructor for 'Runway' must explicitly initialize the const member 'length' . . . . char-*ch-=, strtok( (char-*)s.c-str()," ."); ..const, string-site = ch; .const string namestrtok (NULL,"); , const, int length-=-atol (strtok (NULL' " " " ) ),- site numbersite; name name: length length; No viable overloaded ' ! No viable overloaded'' 0 I 9 0 Cannot assign to non-static data member 'length_' with const-qualified type 'const int' string Runway::site number (void)consti return site_number- string Runway::name (void)const return.name int Runway: :length(void)constt .return length_i- int Runwav: :convert length(string ) const4-

Explanation / Answer

Replace your constructor with following constructor:

Runway::Runway(string s) : length_(atoi(strtok(NULL," "))), site_number_(strtok((char *)s.c_str()," ")), name_(strtok(NULL," ")){}

Modified Code: