[SOLVED] I am looking to define two library with different names that use the same code

I am looking to define two library with different names that use the same code

I have a c++ library which has an function called ExampleFunction(). This function is documented and is already in use. Unfortunately, the style of the library requires this function to be called exampleFunction() {initial letter is lowercase}.

I need to keep the old name for backwards compatibility but add the new name as a public function. What is the most efficient way to do this?

I am assuming that adding a definition of:

void exampleFunction() {ExampleFunction();}

is not the best way of solving this and am looking for options.

Solution

You could rename the existing function that actually has the implementation to exampleFunction(), since that's what it should be. Then, so users of the old name 1) still have working code, and 2) are told that there's a newer function name to use, you can do this:

[[deprecated("Use exampleFunction() instead")]]
inline void ExampleFunction() { exampleFunction(); }

This uses the deprecated attribute from C++14 and later. The performance hit for the wrapper function is either non-existent (if really inlined by the compiler) or negligible.