![]() ![]() ![]() Function Name it is the name of the function by which i is called.In case where the function does its work but has nothing to return, you must use the return_type as void. Return Type it is the type of object that the functions returns. Return_type function_name( parameter list )Ī C++ function definition consists of a function header (the declaration part without semicolon) and a function body. ) Ī function definition provides the actual body of the function. Its syntax is functionName (list of formal parameters with type and name like name, name. For e.g in order to write a calculator CLI based application, we need functions to present menu, function to add, subtract, multiple, divide and do modulo operation, function to display result etc.Ī function declaration or its signature consists of its name, its return type, and set of parameters passed to it. Most of the programmers split their code into separate functions based on logically dividing a specific task into a number of functions. A function is also called as a method or a sub-routine or a procedure etc. A program is said be following modular approach ifs functionality is split into multiple functions. main () which is the entry point of the program. ![]() Every C++ program has at least one function i.e. A function is a set of statements that as a whole accomplish a task. define the code once, and use it many times. Functions are used to perform certain actions, and they are important for modular programming specially reusing code i.e. A function or a method is a block of code that gets executed when it is called. ![]()
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