Thread: help with STL container remove_if on a class

I've been looking around for how to use the remove_if function on a list of a class. The examples i'm found haven't helped me much. How do you write a predicate, and what's the syntax for using it?

Code:

class MyClass
{
public:
	void SetNum(int);
	void SetChar(char);
private:
	int num;
	char ch;
};

int main()
{
	std::list<MyClass> ClassList;
	//populate list
	ClassList.remove_if/*?*/;

	return 0;
}

How could I remove all elements of the list that contained 5 as num?
How could I remove all elements of the list that contain 3 as num and 'a' as ch?