integer indexed with a string in c++ [duplicate]

Question

Possible Duplicate:
In C arrays why is this true? a[5] == 5[a]

How is it possible that this is valid C++?

void main()
{
  int x = 1["WTF?"];
}

On VC++10 this compiles and in debug mode the value of x is 84 after the statement.

What's going on?

Answer 1

Array subscript operator is commutative. It's equivalent to int x = "WTF?"[1]; Here, "WTF?" is an array of 5 chars (it includes null terminator), and [1] gives us the second char, which is 'T' - implicitly converted to int it gives value 84.

Offtopic: The code snippet isn't valid C++, actually - main must return int.

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