tr1:bindを使う

C++

VC9のtr1の実装具合ってどんなもんだろ。

#include <iostream>
#include <functional>

using namespace std;

int count1(int n) {
  return ++n;
}

int count2(int &n) {
  return ++n;
}

int count3(int *n) {
  return ++(*n);
}

int main() {
  int n1 = 0, n2 = 0, n3 = 0;
  tr1::function<int (void)> f1 = tr1::bind(count1, n1);
  tr1::function<int (void)> f2 = tr1::bind(count2, n2);
  tr1::function<int (void)> f3 = tr1::bind(count3, &n3);

  cout << "f1: " << f1() << endl;
  cout << "f1: " << f1() << endl;
  cout << "f1: " << f1() << endl;
  cout << "f2: " << f2() << endl;
  cout << "f2: " << f2() << endl;
  cout << "f2: " << f2() << endl;
  cout << "f3: " << f3() << endl;
  cout << "f3: " << f3() << endl;
  cout << "f3: " << f3() << endl;
}




f1: 1

f1: 1

f1: 1

f2: 1

f2: 2

f2: 3

f3: 1

f3: 2

f3: 3
bindはboostの鬼門という話があったけど、tr1::bindはどうなんだろう？ばんばん使っていきたいけど。