module test;

import std.stdio;
import std.conv;
import std.c.stdlib;

T construct(T, U...)(U args) if (is(T == class))
{
    enum sizeT = __traits(classInstanceSize, T);
    void[] buffer = malloc(sizeT)[0 .. sizeT];
    return emplace!T(buffer, args);
}

void destroy(T)(T obj) if (is(T == class))
{
    delete obj;
    free(cast(void*)obj);
}

class A
{
    private:
    string msg;

    public:
    this(string msg)
    {
        this.msg = msg;
    }

    ~this()
    {
        writeln(msg);
    }
}

void main()
{
    auto a = construct!A("bye!");
    scope(exit) destroy(a);
    writeln("hello!");
}

/*
 * Output:
 *
C:\Programming\D\my_stuff\SDC\test>dmd test.d

C:\Programming\D\my_stuff\SDC\test>test
hello!
bye!

C:\Programming\D\my_stuff\SDC\test>
*/