?? memfun2.cpp
字號:
//: C05:MemFun2.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
// Applying pointers to member functions
#include <algorithm>
#include <vector>
#include <iostream>
#include <functional>
using namespace std;
class Angle {
int degrees;
public:
Angle(int deg) : degrees(deg) {}
int mul(int times) {
return degrees *= times;
}
};
int main() {
vector<Angle> va;
for(int i = 0; i < 50; i += 10)
va.push_back(Angle(i));
int x[] = { 1, 2, 3, 4, 5 };
transform(va.begin(), va.end(), x,
ostream_iterator<int>(cout, " "),
mem_fun_ref(&Angle::mul));
cout << endl;
} ///:~
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