Hi, I see C books that use the same variable names in the function definition, calling function and declaration. Others use the same variable names in the calling function and in the declaration/prototype but a different one in the definition as in:

void blabla(int something); //prototype

blabla(something)  // calling function inside main after something has been initialized to int 

void blabla(int something_else)  //definition

I have two questions:

1. What convention is best to use in C?;

2. Does the convention apply regardless whether a value is being passed "by-value" or if it's being passed by a pointer?

Thanks a lot...