compose2.cpp

The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999
`#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include "print.hpp"
#include "compose.hpp"
using namespace std;
using namespace boost;
int main()
{
vector<int> coll;
// insert elements from 1 to 9
for (int i=1; i<=9; ++i) {
coll.push_back(i);
}
PRINT_ELEMENTS(coll);
// remove all elements that are greater than four and less than seven
// - retain new end
vector<int>::iterator pos;
pos = remove_if (coll.begin(),coll.end(),
compose_f_gx_hx(logical_and<bool>(),
bind2nd(greater<int>(),4),
bind2nd(less<int>(),7)));
// remove ``removed'' elements in coll
coll.erase(pos,coll.end());
PRINT_ELEMENTS(coll);
}
`