What should be considered when overloading C++ functions?

When overloading C++ functions, it is important to take note of the following items:

1. When the function name is the same, but the parameter lists are different: in function overloading, you can distinguish different functions by the parameters in their lists, which may differ in aspects such as the number, data type, and order of the parameters.
2. C++ does not allow function overloading based on return type because the compiler cannot distinguish between different functions based on their return type.
3. Function overloading cannot solely rely on parameter names or default parameter values: C++ function overloading is based on the function’s parameter list, so parameter names or default parameter values cannot be used as a basis for distinguishing different functions.
4. Function overloading can occur within the same class or in different classes: Function overloading can occur within the same class or in different classes, as long as the parameters of the functions are different.
5. Function overloading can involve both const member functions and non-const member functions: C++ member functions can also be overloaded, including both const and non-const member functions.
6. To avoid ambiguity caused by function overloading: When overloading functions, it is important to avoid ambiguity in function calls, where the compiler cannot determine which overloaded function to call. This can be avoided by using explicit type conversion or by avoiding situations where parameter types are similar.