import std.stdio;

import std.algorithm;

​

struct S {

    int x;

    @disable this();     // Disables default construction

    @disable this(this); // Disable copying

​

    this(int v) { x = v; }

}

​

struct T {

    float y;

    S s;

    @disable this();     // Disables default construction

    @disable this(this); // Disable copying

​

    this(float v) {

        y = v;

        s = S(cast(int)v);

    }

}

​

void main() {

    auto s = T(3);

}