structures do not contain functions and constructor is a special function.hence,structures can't contain constructors

answer is completely wrong.

see structure behaves diffrently depending on c or c++ language

1>if ur in c++ then u can write function as a part of structure .
2> but if ur in c programming then u cannot write functions as a part of structure.

see following code for c++( keep file name with cpp (filaname.cpp)format.

then try this code
#include <stdio.h>
#include <conio.h>
#include <iostream.h>
struct A
{
public:
int a;

public:
A set_A(A a);

};

A set_A(A a1)
{
a1.a=10;
return a1;
}


int main()
{
A var,ret;
var.a=0;
ret=set_A(var);
cout<<"
Return value is:-"<<ret.a;
return 0;
}

repeate same thing by just renaming that file as filename.c & try it out u can easily find difference.

There is two basic difference between struct in C and C++:
1> Structures in C++ are similar to Classes in C++ only that by default the access specifier in structure is public whereas in Classes it is private.

2> While declaring a instance of a struct you can just use the name of the structure, and you don't need to qualify it with the keyword struct.

STRUCTURES IN C++

File:- abc.h

#ifndef ABC_H
#define ABC_H


struct abc
{
abc();
};

#endif

File:- abc.cpp

#include "abc.h"
#include <iostream.h>

abc::abc()
{
cout<<"Structure Constructor"<<endl;
}

File:- MainFile.cpp

#include<iostream.h>
#include"abc.h"


int main()
{
abc *a = new abc();
return 0;
}

struct Test
{
Test()
{
cout<<"Object Created Successfully";
}
};
int main()
{
Test ob;
return 1;
}

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