A function must return a result. For it to be useful it must be part of an expression, i.e., not called as a standalone routine. For example, suppose you have a function called 'sum' that adds two...
Pieces of program-code, they are identified by their names. Example for function-declaration: int main (void); Example for function-definition: int main (void) { puts ("Hello, world!"); return 0; }
Virtual functions have many advantages, but here are a couple of their disadvantages:
slower -- The function call takes slightly longer due to the virtual mechanism,and it also makes it more...
A function in C++ are a set of command or a piece of code that needs to be executed again and again with different or same parameters for expamplevoid somefunc(){cout<<"Hello";}will print hello...