Hi,
Can transform_iterator be used in conjunction with remove_if algorithm?
The compiler (vc7.1, vc8, g++) is refusing to compile this:
#include <string>
#include <utility>
#include <vector>
#include <functional>
#include <cassert>
#include <iostream>
#include
std::vector > c;
struct to_num {
typedef int result_type;
int operator()(const std::pair& p) const
{
return p.second;
}
};
int main()
{
using std::make_pair;
c.push_back(make_pair("A", 2));
c.push_back(make_pair("A", 3));
c.push_back(make_pair("A", 4));
c.push_back(make_pair("A", 15));
c.push_back(make_pair("A", 16));
c.push_back(make_pair("A", 17));
assert(c.size() == 6);
std::remove_if(
boost::make_transform_iterator(c.begin(), to_num()),
boost::make_transform_iterator(c.end(), to_num()),
std::bind1st(std::less_equal<int>(), 10));
assert(c.size() == 6);
}
Regards,
Josue
