combine() [2/2]

template<typename result_t , typename... arguments_t>

static delegate xtd::delegate< result_t(arguments_t...)>::combine ( const delegate< result_t(arguments_t...)> &  a, const delegate< result_t(arguments_t...)> &  b  )

inlinestaticnoexcept

Concatenates the invocation lists of two delegates.

Parameters

a	The delegate whose invocation list comes first.
b	The delegate whose invocation list comes second.

Returns

delegateType A new delegate with an invocation list that concatenates the invocation lists of a and b in that order. Returns a if b is null, returns b if a is a null reference, and returns a null reference if both a and b are null references.

Remarks

The invocation list can contain duplicate entries; that is, entries that refer to the same method on the same object.