The need for function overloading is to allow the same function call to accept different parameter types and/or a different number of parameters. The function signature differentiates the functions. The return type is also part of the signature, and needn't be the same for every overload.
Where the function signature is largely the same, with the same count of parameters but a different parameter type and return type, template functions can provide an alternative method of creating the function overloads. The compiler generates the necessary code for you, on an as-required basis, so you only need to write the function once, rather than once for each type.
There is no such thing as function overloading in C; that is a feature of C++. Function overloading allows us to provide two or more implementations of the same function. Typically, we use function overloading so that the same function can cater for different types. For instance, we might provide one implementation that is optimised to handle an integer argument while another is optimised to handle a real argument. We can also use function overloading to provide a common implementation of a function which can then be invoked by overloads that handle the low-level type conversions.
Overloading, Overriding, Polymorphism, Information Hiding, Inheritance all these are CONCEPTS of C++ and Java. An Object Oriented Language and not of C language. Thats why Bjarne Stroustrup came up with C++ ...
one reason to use new and delete operator overloading in c++ is when you are using your own memory manager code. when the user of your code calls the new keywork, your memory manager code can allocate memory.
...a function call.
Every C plus plus program that is a main program must have the function 'main'.
No. Operator and/or function overloading is only a C++ thing.
Function overloading is used when you want to re-use the same function name with different argument types or a different number of arguments. Calculating the area of a circle isn't the sort of function that requires overloading since the only argument you need is the radius. double area_of_circle (const double radius) { const double pi=4*atan(1); return pi*radius*radius; }
There is no such thing as function overloading in C; that is a feature of C++. Function overloading allows us to provide two or more implementations of the same function. Typically, we use function overloading so that the same function can cater for different types. For instance, we might provide one implementation that is optimised to handle an integer argument while another is optimised to handle a real argument. We can also use function overloading to provide a common implementation of a function which can then be invoked by overloads that handle the low-level type conversions.
one function but multiple behaviours depending on the parameters
There is no "power" operator in C or C++. You need to the use the math library function pow().
Overloading, Overriding, Polymorphism, Information Hiding, Inheritance all these are CONCEPTS of C++ and Java. An Object Oriented Language and not of C language. Thats why Bjarne Stroustrup came up with C++ ...
There is no such term as "building function" in C++.
You need to #include the header file that contains the missing function's declaration.
one reason to use new and delete operator overloading in c++ is when you are using your own memory manager code. when the user of your code calls the new keywork, your memory manager code can allocate memory.
...a function call.
yes,we can make function inline
Every C plus plus program that is a main program must have the function 'main'.