...ebp
   8:   5d                      pop    ebp
   9:   c3                      ret


It is line four that bugs me...

...runtime;
  bool ret=Runtime.initialize();//will segfault below with or without that
  assert(ret);//ok...

...return tuple(true, "text");
}

void main()
{
    auto ret_val = foo();
    assert(ret_val[1] == "text");
}

...cost of the function call. call and ret have
virtually no impact on performance on...

...00 00          mov    eax,0x4
    5:   c3                      ret
    6:   66 2e 0f 1f 84 00...

...auto ret = new S(&curry!(gun, foo));
        return ret;
    }

    S gun(int foo) {
        auto ret...

...runtime;
  bool ret=Runtime.initialize(); //is it necessary?
  printf("ret=%d\n",ret);
  printf("ok2...

...decq	%rdi
	jne	.LBB7_1
.LBB7_2:
	ret
==========================================================
void substract(T)(T[] c, in T...

...esi
    popl    %edi
    popl    %ebx
    popl    %ebp
    ret


The idea proposed here is just an...

...DATA[08h]
        fcos
        faddp   ST(1),ST
        ret 8

BTW, the differences in results is...