A question about flexible array members

A question about flexible array members

[Benoît Dufour]

Hello,
I've a little question about the GCC extension that allows to put
Flexible Array Members at the end of a struct in the C language.
So basically I can do this:
typedef struct IntArray {
    int x;
    int Data[];
} IntArray;
IntArray array = (IntArray) {0, {1, 2, 3, 4, 5}};
And the generated Assembly code will be:
array:
        .long   0
        .long   1
        .long   2
        .long   3
        .long   4
        .long   5

But why can't I do this?

typedef struct IntArray {
    struct {};
    int Data[];
} IntArray;
IntArray array = (IntArray) {{}, {1, 2, 3, 4, 5}};

What I would want is that all the elements of the array be stored in
the Data member, and not have an extra x member in the struct.