How to give function parameters default value?

Development Programming & Scripting C++
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1

Hello, I’m trying to give a default value to a function parameter that takes a reference parameter.

void ExampleFunc(float& TestFloat, bool& TestBool);

How would I give the function default parameters, or is it impossible for reference parameters?

Any help is greatly appreciated!

2

Reference means they are basically pointers to existing variables, passed by the caller.
It might be possible to make it point to a global/static variable by default, eg. something like :

static bool SomeBool = true;
void ExampleFunc(float& TestFloat, bool& TestBool = SomeBool);

This is most likely not gonna work as default value for the blueprints though.

3

You can’t provide defaults for non-const references. Defaults for const references is the same as with pass-by-value.