MoreEnumerable.Unfold<TState, T, TResult> Method

public static IEnumerable<TResult> Unfold<TState, T, TResult>(
	TState state,
	Func<TState, T> generator,
	Func<T, bool> predicate,
	Func<T, TState> stateSelector,
	Func<T, TResult> resultSelector
)

Public Shared Function Unfold(Of TState, T, TResult) ( 
	state As TState,
	generator As Func(Of TState, T),
	predicate As Func(Of T, Boolean),
	stateSelector As Func(Of T, TState),
	resultSelector As Func(Of T, TResult)
) As IEnumerable(Of TResult)

public:
generic<typename TState, typename T, typename TResult>
static IEnumerable<TResult>^ Unfold(
	TState state, 
	Func<TState, T>^ generator, 
	Func<T, bool>^ predicate, 
	Func<T, TState>^ stateSelector, 
	Func<T, TResult>^ resultSelector
)

static member Unfold : 
        state : 'TState * 
        generator : Func<'TState, 'T> * 
        predicate : Func<'T, bool> * 
        stateSelector : Func<'T, 'TState> * 
        resultSelector : Func<'T, 'TResult> -> IEnumerable<'TResult> 

Parameters

state  TState

The initial state.

generator  Func<TState, T>

Function that takes a state and computes the next state and the next element of the sequence.

predicate  Func<T, Boolean>

Function to determine if the unfolding should continue based the result of the generator function.

stateSelector  Func<T, TState>

Function to select the state from the output of the generator function.

resultSelector  Func<T, TResult>

Function to select the result from the output of the generator function.

Type Parameters

TState

Type of state elements.

T

Type of the elements generated by the generator function.

TResult

The type of the elements of the result sequence.

Return Value

Reference