How do I make a struct argument optional?

Beowulf_ · 2002-11-22T02:57:28

Ok, when passing an argument to a function, like so: void CSURFACE::Rect_Crop(SMALL_RECT &rCrop, const SMALL_RECT &rFrame, SMALL_RECT &rMod) I want to make the last argument (rMod) optional. I think the way you would do this with an integer, or so, would be to say: SomeFunction(int x = 0) Am I right? Is there an ''elegant'' way to do this? Or do I have to force it by defining a "default rectangle", or using pointers? Is there some other way to make an arguement optional other than the one I listed?

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Started by Beowulf_ November 20, 2002 10:36 PM

9 comments, last by Beowulf_ 21 years, 4 months ago

Sand_Hawk

108

November 22, 2002 02:57 AM

I think you cannot have structs/classes to be completely optional. However, make them pointers and pass NULL when you don''t want to pass a struct to it.

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