Class Member Initialization

[edge6768]

Hey guys,

I have a little question: Is there any real difference in the way you initialize class members? Does one create a larger executable or faster run-time?

EX:
.h

class foo {
    int a;
    foo(int rhs);
};

.cpp (type 1)
foo::foo(int rhs) : a(rhs) { }

OR

.cpp (type 2)
foo::foo(int rhs) { a = rhs; }

[Naughty Albatross]

Hi,
(type 1) is generally faster. Use it as often as you like.

[Naughty Albatross]

Does that help? :)

[edge6768]

Yes, thank you. What is the difference between the two in that case though?

[Naughty Albatross]

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