4. Of course i import it, but it is implicit import if i import
std.stdio.
No, it doesn't. If it does, it's an import bug. std.stdio does
not publicly
import std.traits. You need to import it.
- Jonathan M Davis
Believe me, it works fine. So it must be a bug.
For opCast i have now this solution
U opCast(U)() const {
static if (is(FieldTypeTuple!(U)[0] == short)) {
return Vector2D!(short)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == float)) {
return Vector2D!(float)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == double)) {
return Vector2D!(double)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == int)) {
return Vector2D!(int)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == long)) {
return Vector2D!(long)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == byte)) {
return Vector2D!(byte)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == ushort)) {
return Vector2D!(ushort)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == uint)) {
return Vector2D!(uint)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == ulong)) {
return Vector2D!(ulong)(this.x, this.y);
}
static if (is(FieldTypeTuple!(U)[0] == ubyte)) {
return Vector2D!(ubyte)(this.x, this.y);
}
return null;
}
which avoid explicit casts in opEquals.
So that work fine: if (vs2 == vf) {
Only two question: Is that correct behaviour and wouldn't change
in future versions?
And exist a smarter solution as this? ;)
