c# - Get inner array of a list without using ToArray() -


i have method needs list or array. don't want create overload because it's not trivial method. decided make this:

public float boundingbox(roadnode[] nodes)

the roadnodes have on client side in array , in list. when client has list have call toarray() on list , call method that's unacceptable copies items new array. performance big issue don't want time consuming. should do?

if you're enumerating on this, can change single signature:

public float boundingbox(ienumerable<roadnode> nodes)

if you're needing indexing behavior of both lists , arrays, can change signature to:

public float boundingbox(ilist<roadnode> nodes)

the first can more desirable, in can write code this:

public float boundingbox(ienumerable<roadnode> nodes){     ilist<roadnode> list;     if (nodes ilist<roadnode>) list = (ilist<roadnode>)nodes;     else list = nodes.tolist();     //do list }

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