I want to make a function that has parameters like here
void example(int x, int y, int z);
but I dont have to put z in there like this example(34, 21); is that possible in C++?
C++ how to make a function that has optional parameters
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2 Answers
You basically have two options
- Create a overloaded function that takes 2 parameters. So you would have
void example(int x, int y, int z)
and
void example(int x, int y)
- Assign default value to z
void example(int x, int y, int z = 0)
The way to use undefined amount of parameters is to use ellipsis. For further read i recomend to look through https://en.cppreference.com/w/cpp/language/variadic_arguments To implement it just google how to use c++ ellipsis and thats it!
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