// For vector, we have to call erase after remove.
vector<int> v;
// ....
vector<int>::iterator endPos = remove(v.begin(), v.end(), 99); // Remove 99 from vector, returns last valid position.
v.erase(posEnd, v.end()); // Erase all elements after posEnd.

// For list, the member function remove is enough:
list<int> l;
//...
l.remove(99); // this will erase all 99 in the list.

 1: class Widget
 2: {
 3: public:
 4:     Widget();
 5:     virtual ~Widget();
 6:     bool IsCertified();
 7: };
 8: 
 9: vector<Widget*> v;
10: 
11: // push lots of widget pointers to v.
12: 
13: v.erase(remove(v.begin(), v.end(), not1(mem_fun(&Widget::IsCertified))), v.end());

14: vector<Widget*> endPos = remove(v.begin(), v.end(), not(mem_fun(&Widget::IsCertified)));
15: for_each(endPos, v.end(), [](Widget* pw){if(pw) delete pw;});
16: v.erase(endPos, v.end());

#include <vector>
#include <iterator>
#include <algorithm>
#include <iostream>
#include <stdio.h>

using namespace std;

class Widget
{
public:
    Widget(int i);
    virtual ~Widget();
    bool IsCertified();
    void Show();
private:
    int m_i;
};

/* See description in header file. */
Widget::Widget(int i)
        : m_i(i)
{
}

/* See description in header file. */
Widget::~Widget()
{
    printf ("Deleting Obj: %p, value: %d\n", this, m_i);
}

/* See description in header file. */
bool Widget::IsCertified()
{
    return m_i % 2 == 0;
}

/* See description in header file. */
void Widget::Show()
{
    printf ("\tObj: %p, value: %d\n", this, m_i);
}

bool DeleteIfUncitified(Widget* p)
{
    if (p && !p->IsCertified())
    {
        delete p;
        return true;
    }
    return false;
}

int main(int argc, char *argv[])
{
    vector<Widget*> v;
    for (int i = 0; i < 20; ++i)
    {
        Widget* p = new Widget(i);
        v.push_back(p);
    }

    random_shuffle(v.begin(), v.end());

    printf ("Before remove, size: %lu, contents:\n", v.size());
    for_each(v.begin(), v.end(),
             [](Widget* p){
                 if (p) p->Show();
                 else printf("Obj is Null");});
    printf ("\nNow removing...\n");
    v.erase(remove_if(v.begin(), v.end(), DeleteIfUncitified), v.end());
    printf ("\nAfter remove, size: %lu, contents:\n", v.size());
    for_each(v.begin(), v.end(),
             [](Widget* p){
                 if (p) p->Show();
                 else printf("Obj is Null");});

    return 0;
}