Passing Variable Number of Arguments with different type - C++

Question

I am coding in C++ and have a few questions regarding the ellipsis:

1. Is it possible to pass in class or class pointer into the ellipsis?

2. Basically what I want to do is to pass in variable number of arguments in the type of char* and class. I am using ellipsis currently and trying to figure out how to pass in the class. If ellipsis isn't applicable over here, what are the options available?

I want to let the user to directly call the function using func( params 1, params2, ...) without explicitly assigning the params into a vector or array first before passing the vector or array as argument to the function.

Answer 1

You should consider that using variadic functions (C-style) is a dangerous flaw. If the objects passed to the function mismatch the type awaited, or if you don't put the exact number of parameters awaited, then you basically have a violent crash at runtime.

In Bjarne Stroustrup C++ In Depth Series - C++ Coding Standards - 101 Rules, Guidelines, And Best Practices by Herb Sutter and Andrei Alexandrescu, chapter 98: Don't use varargs (ellipsis)

I deeply subscribe to @tenfour's proposal:

• use an std::vector that contains all your parameters.