在C ++中是否有“正确”的Prototype函数方法？

Question

I was taught to do:

functionReturn function(dataType_of_parameter)

While more and more I have been seeing

functionReturn function(dataType_of_parameter parameter_identifier)

Answer 1

Both suggestions are right ways to declare a function. The argument names are optional and make no difference to the compiler except in the function definition.

The advantage of naming function arguments in forward declarations is that a programmer can deduce the the purpose of the argument. Consider for example void copy(T* source, T* dest) versus void copy(T*, T*) .