DMD 1.034 and 2.018 releases

[bearophile]

Probably I am missing something important, I have tried this code with the 1.034 (that compiles my large d libs fine), but I have found many problems:

import std.stdio: putr = writefln;

void main() {
    int[] a1 = [1, 2, 3];
    int[] a2 = [2, 4, 6];

    //putr(a1[] + a2[]); // test.d(6): Error: Array operations not implemented

    auto a3 = a1[] + 4;
    putr(a3); // [1,2,3,0,0,0,0]

    int[] a4 = a1[] + a2[]; // test.d(12): Error: Array operations not implemented

    int[] a5 = [3, 5, 7, 9];
    int[] a6 = a1 + a5; // test.d(16): Error: Array operations not implemented

    int[] a7;
    a7[] = a1[] + a2[];
    putr(a7); // prints: []

    auto a8 = a1 + a2; // test.d(21): Error: Array operations not implemented
    putr(a8);
}


Few more questions/notes:
- I like a syntax as a+b and a[]+4 instead of a[]+b[] and a[]+4, I am used to that from PyLab, etc.
- How does it works (or not works) with jagged/square matrices?
- When possible I'm do few benchmarks compared to normal D code, C code compiled normally with GCC and C code automatically vectorized by GCC.
- Is it able to compute a+b+c with a single loop (as all Fortran compilers do)? I presume the answer is negative.
- Hopefully in the future they may support the SSE3/SSSE3 too that my CPU supports.

Bye, and good work,
bearophile