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Asked: 2026-05-24T06:43:05+00:00

I have a function with following signature char requestApiCall(int num, const wchar_t* pParams =

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I have a function with following signature

char requestApiCall(int num, const wchar_t* pParams = 0, ...)
{
...
}

Now I want to to get all pParams in an array (or to be able to iterate over it). I know this is possible with some macros, but I have no idea how to do it.

Any help would be appreciated.

P.S. I’m using MinGW if it matters.

UPDATE

my question caused confusion. I will try to clarify (sorry for my grammar). Both Object Pascal and C# has the ability to pass unlimited amount of parameters to a method. In C# we achieve this with params keyword:

void Foo(params string[] strs)
{
...
}
Foo("first", "second", "another one", "etc");

I want to achieve same result in C++ without using any object/class. In my case, type safety is not a concern, but if there is a type safe way to achieve that goal, I will gladly hear your comments 🙂

Thanks

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1 Answer

  1. Editorial Team

    You need to look at the functions and macros declared in stdarg.h. Here is a tutorial that explains it.

    http://publications.gbdirect.co.uk/c_book/chapter9/stdarg.html

    I’m not sure what your function parameters are supposed to represent but I think you’ll find that it needs to change.

    By the way, I find that for C++ I can usually avoid variadic functions. This has the advantage of preserving type safety. Are you sure you really need a variadic function?

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