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Re: How to declare a function parameter to be optional?

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On 08/02/2011 04:58, Pushkar Prasad wrote:
> Hello All
>
> Is there a way to ensure that one of the function argument is set as
> optional. So that it is not mandatory for the caller to pass that
> parameter and yet if necessary can be used?

Not in C.
>
> I do remember that it is possible, but I can't seem to find that
> information. Any guidance will be of great help.

I think you are remembering something from C++ where there are two ways 
of achieving this (default arguments and function overloading)

The best you can do in C is to use  '...' to allow an unspecified list 
of arguments (printf() is an example of a function that uses this)

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Re: How to declare a function parameter to be optional? Francis Glassborow <francis.glassborow@btinternet.com> - 2011-02-09 12:22 -0600

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