#include <cassert>
#include <functional>
#include <vector>
#include <algorithm>
struct Player
{
Player(const int anyX, const int anyY) : x(anyX), y(anyY) {}
int x,y;
//And more...
};
//From http://www.richelbilderbeek.nl/CppFunctorSameXandY.htm
template <class T>
struct SameXandY : public std::unary_function<T,bool>
{
explicit SameXandY(const T& position) : mPosition(position) {}
bool operator()(const T& position) const
{
return position.x == mPosition.x && position.y == mPosition.y;
}
private:
const T mPosition;
};
int main()
{
std::vector<Player> v;
for (int i=0; i!=10; ++i) v.push_back(Player(i,i));
assert( std::find_if(v.begin(), v.end(), SameXandY<Player>(Player(3,5))) == v.end());
assert( std::find_if(v.begin(), v.end(), SameXandY<Player>(Player(5,5))) != v.end());
}
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