Crash in struct opAssign

[olivier]

Hi,

This program, compiled with dmd 1.065 under Linux, crashes:

void main() {
        Num a = 1;
}

struct Num {
        int[] d;

        Num opAssign( int v ) {
                d.length = 1;
                d[0] = v;
                return *this;
        }
}

It looks like d is not initialized before opAssign() is called.
It doesn't crash if I replace "Num a = 1" with:
Num a;
a = 1;

Is this normal behaviour?