Harici uygulamanın süresi hesaplanabilir.

```d
import std.datetime.stopwatch;
import std.stdio;
import std.process...

...ZamanSayacı
{
  bool ekranaYaz;
  StopWatch süre;

  import std.datetime.stopwatch;
  this(bool print)
  {
    ekranaYaz = print;
    süre...

...code:

a.d:
module a;

import std.datetime;

struct AStruct
{
    SysTime time = SysTime.max;
}

void...

...like walking through a minefield. Even seemingly innocent things like `DateTime` can use GC internally.

...std.stdio;
import std.conv;
import std.datetime.stopwatch;

string[int] stuff;

void main()
{
    for...

...import core.stdc.stdio: printf;
import std.datetime.stopwatch;

enum ITERS = 1_000_000_000...

...be a better way?

```d
import std.datetime.stopwatch;
import std.stdio, std.algorithm,
       std...

...import core.stdc.stdio: printf;
import std.datetime.stopwatch;

const int ITERATIONS = 1_000_000...

...d
import std.stdio : writefln;
import std.datetime.stopwatch;

enum ITERATIONS = 1_000_000;
enum...

...stdio;
import core.stdc.stdlib;

import std.datetime.stopwatch : StopWatch;

import dcv.videoio;
import dcv...