1. Boost.Timer
日本語

2. Boost.Timer?

3. Boost.Chrono?

4. Boost.Chrono?
NO

5. Boost.Timer

6. boost::progress_display

7. Why?

12. How to Use

13. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

14. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

16. Beautiful Interface!

17. const int MAX =
0;
progress_display show_progress(MAX);
cout << show_progress.expected_count();

18. const int MAX =
0;
progress_display show_progress(MAX);
cout << show_progress.expected_count();
1

19. Interface

20. progress_display(
unsigned long expected_count,
std::ostream& os,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");

21. progress_display(
unsigned long expected_count,
std::ostream& os,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");

22. progress_display(
unsigned long expected_count,
std::ostream& os = std::cout,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");

23. progress_display(
unsigned long expected_count,
std::ostream& os = std::cout,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");
Customize?

24. progress_display(
unsigned long expected_count,
std::ostream& os = std::cout,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");
Customize?

25. progress_display(
unsigned long expected_count,
std::ostream& os = std::cout,
const std::string & s1 = "¥n",
const std::string & s2 = "",
const std::string & s3 = "");
Customize?

26. const int MAX = 100000;
progress_display show_progress(MAX,
std::cout,
"hoge",
"fuga",
"hagebs");
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

27. const int MAX = 100000;
progress_display show_progress(MAX,
std::cout,
"hoge",
"fuga",
"hagebs");
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

28. const int MAX = 100000;
progress_display show_progress(MAX,
std::cout,
"hoge",
"fuga",
"hagebs");
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

29. const int MAX = 100000;
progress_display show_progress(MAX,
std::cout,
"hoge",
"fuga",
"hagebs");
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

30. void restart( unsigned long expected_count );
// Postconditions: count()==0
//
expected_count()==expected_count

31. void restart( unsigned long expected_count );
// Postconditions: count()==0
//
expected_count()==expected_count

32. void restart( unsigned long expected_count );
// Postconditions: count()==0
//
expected_count()==expected_count
const int MAX = 0;
progress_display show_progress(MAX);
cout << show_progress.expected_count();
1

33. unsigned long operator+=(unsigned long);
unsigned long operator++();
unsigned long count() const;
unsigned long expected_count() const;

34. Extra

35. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX; i++) {
DoSomething(i);
++show_progress;
}

36. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX+MAX; i++) {
DoSomething(i);
++show_progress;
}

37. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX+MAX; i++) {
DoSomething(i);
++show_progress;
}

38. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX+MAX; i++) {
DoSomething(i);
++show_progress;
}

39. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX*MAX; i++) {
DoSomething(i);
++show_progress;
}

40. const int MAX = 100000;
progress_display show_progress(MAX);
for(int i=0; i<MAX*MAX; i++) {
DoSomething(i);
++show_progress;
}

41. Let's Enjoy
progress_display!

42. ¥e