Functional handling for edelib::List and similar constructs

Functions
template<typename T , typename F >
unsigned int	filter (const F &func, const T &container, T &ret)
template<typename T , typename F >
void	map (F &func, const T &container, T &ret)
template<typename T , typename R , typename F >
void	reduce (F &func, const T &container, R &ret)
template<typename T , typename F >
void	for_each (const F &func, const T &container)
template<typename T , typename F >
void	for_each (const F &func, const T &container, void *p)

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Function Documentation

unsigned int edelib::filter	(	const F &	func,
		const T &	container,
		T &	ret
	)

Filter given container by calling func on each element. If func returns true for given element, it will be copied to other list.

void edelib::for_each	(	const F &	func,
		const T &	container
	)

Traverse container calling func on each element. Returns nothing.

void edelib::for_each	(	const F &	func,
		const T &	container,
		void *	p
	)

Same as above for_each, but with additional void* parameter that is given to function as second parameter (function is called as func(val, void*)

void edelib::map	(	F &	func,
		const T &	container,
		T &	ret
	)

Apply func on each element of given container and add it to ret container.

void edelib::reduce	(	F &	func,
		const T &	container,
		R &	ret
	)

Reduce all elements from container using func as function. The best example of this is to sum all elements, like:

    int sum(int a, int b) {
       return a + b;
    }

    int ret;
    list <int> lst; // [1,2,3,4,5]
    reduce(sum, lst, ret);
    // result will be in form 1 + 2 + 3 + 4 + 5