void main() {
import std.stdio : writeln;
int[] dst;
int[] a;
int[] b;
a.length = 3;
b.length = 3;
dst.length = 4;
dst[] = a[] + b[];
writeln(dst[3]);
}
Prior to 2.077, per Steven Schveighoffer, the above safely failed with an array violation. Currently on his and my test machines, the above runs to completion printing out some number (402696894 on my machine, 402653184 on his). Annotating main with @safe didn't change anything.