[Some C++] #c++

gistfile1.cpp

#include <iostream>
#include <functional>

class MemFunTest
{
public:
    bool test0()
    {
        std::cout << "[" << this <<"-test0 called]" << std::endl;
        return false;
    }

    bool test1(int a)
    {
        std::cout << "[" << this <<"-test1(" << a << ") called]" << std::endl;
        return false;
    }

    bool test2(int a, int b)
    {
        std::cout << "[" << this <<"-test2(" << a << "," << b << ") called]" << std::endl;
        return false;
    }
};

int main()
{
    // for member function, use std::mem_fun and std::bind1st
    
    std::mem_fun_t< bool, MemFunTest>       fo0 = std::mem_fun(&MemFunTest::test0);
    std::mem_fun1_t<bool, MemFunTest, int>  fo1 = std::mem_fun(&MemFunTest::test1);
    //std::mem_fun2_t<bool, MemFunTest, int, int> fo2 = std::mem_fun(&MemFunTest::test2);   <-- compile error, mem_fun doesn't work on binary fuctions

    MemFunTest foo;
    //fo0();      <-- compile error, as expected
    //fo0(foo);   <-- compile error, as expected
    fo0(&foo);
    //fo1();       <-- compile error, as expected
    //fo1(&foo);   <-- compile error, as expected
    fo1(&foo, 3);

    /*std::binder1st<Operation>*/ //std::bind1st(fo0, &foo);   <-- compile error, since bind1st works only on binary fuctions
    std::binder1st<std::mem_fun1_t<bool, MemFunTest, int> > bfo1 = std::bind1st(fo1, &foo);
    //bfo1();     <-- compile error, as expected
    bfo1(7);
    
    return 0;
}

output of rev 1 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48) :
[0x7fffd475bd6f-test0 called]
[0x7fffd475bd6f-test1(3) called]
[0x7fffd475bd6f-test1(7) called]