[algogeeks] C++ initialization list

[sagar sindwani]

I am working on How compilers handle initialization list. I came across a
case where I am not sure what should be the compiler behaviour.

*Example 1:-*

#include <iostream>

class A
{
    public:
        int x,y,z;
};

int main()
{
    A a1[2] =
    {
        { 1,2 },
        { 3,4 }
    };

    std::cout << "a1[0].z is " << a1[0].z << std::endl;

    return 0;
}

In above case a1[0].z is ? g++ shows it as 0 ( zero ). It is exactly 0 or
garbage value, I am not sure on that.

I tried lot of books and some documents , no where I found what C++ says
for initialization of class objects.

You can find handling of below case in almost every book.

*Example 2:- *

int arr[6] = {0};

In Example 2,  compilers will auto-fill all members with 0. It is mentioned
in books. But when it comes to User-defined datatypes nothing is mentioned.


Please share your thoughts on this. If you find any document related to
this, please share it as well.

Thanks
Sagar

-- 
You received this message because you are subscribed to the Google Groups 
"Algorithm Geeks" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to algogeeks+unsubscr...@googlegroups.com.