Why do I need member initializers?What the real importance?

Question

Why I need to initialize the constant variable using member initializers whereas I can initialize it where I declared the constant variable.Likewise the given example:
#include <iostream>
using namespace std;

class MyClass {
public:
MyClass(int a);
private:
int regVar;
const int constVar=5;
};

MyClass::MyClass(int a)
{
regVar=a;
cout << regVar << endl;
cout << constVar << endl;
}

int main() {
MyClass obj(42);
}
Output:
42
5
So,why do I need member initializers,If anyone knows do reply plz.Or it just an alternative way of initializing const variable?

Answer 1

Maybe this can also help:

https://www.geeksforgeeks.org/when-do-we-use-initializer-list-in-c/

Answer 2

It's just another way to initialize your members since C++11.

https://en.cppreference.com/w/cpp/language/data_members

Scroll down to 'member initialization', and then the 2nd option.

Answer 3

Hadia [ Gone Heartless ] I had done that lesson -_-

Answer 4

Hadia [ Gone Heartless ] Have u seen my given example,it is initialized.

Answer 5

Hadia [ Gone Heartless ] tnx for co-operation.-,-

Answer 6

Dennis tnxs