I need help Specifying which member function is being called in everyline that h

Question

I need help Specifying which member function is being called in everyline that has a //? at the end of it!

Please this is due by the end of the day!

Problem 2. Specify which member function is being called in each line.

#include <iostream>
#include <string>
using namespace std;
void main()
{
//Specify which member function is being called in the following lines
string s1("ABCD"); // ?
string s2; // ?
s2 = "XYZ"; // ?
string s3 = s1; // ?
s1 = s2; // ?
s2 = 'O'; //?
cout << "s1=" << s1 << endl;
cout << "s2=" << s2 << endl;
cout << "s3=" << s3 << endl;
}
/* string class member functions
(1) string ();
(2) string (const string & str);
(3) string (const char * s);
(4) string & operator= (const string & str);
(5) string & operator= (const char * s);
(6) string & operator= (char c);
*/

Explanation / Answer

HI, I have specified corresponding function call at each line.

#include <iostream>
#include <string>
using namespace std;
void main()
{
//Specify which member function is being called in the following lines

string s1("ABCD"); // (3) string (const char * s);

string s2; // (1) string ();

s2 = "XYZ"; // (5) string & operator= (const char * s);

string s3 = s1; // (2) string (const string & str);

s1 = s2; // (4) string & operator= (const string & str);

s2 = 'O'; //(6) string & operator= (char c);

cout << "s1=" << s1 << endl;
cout << "s2=" << s2 << endl;
cout << "s3=" << s3 << endl;
}

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