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Question: What is prototype in c++ and c?

Answer: Prototype is a model that can explain the structure of the functions we are going to use in our C and C++ programs.Suppose we are going to use one function called add with two parameters to add means the prototype of the function is int add(int a,int b), simply prototype in C and C++ is the function declaration.

Prototype is a model that can explain the structure of the functions we are going to use in our C and C++ programs.Suppose we are going to use one function called add with two parameters to add means the prototype of the function is int add(int a,int b), simply prototype in C and C++ is the function declaration. Source: CoolInterview.com

In both the languages Prototype refers to the function declaration having no body, which includes body later in the program.<br><br>It helps in structuring program. Source: CoolInterview.com

prototype of the function tell the compiler that this type of function is defined in the program. Source: CoolInterview.com

The word prototype comes from the Latin words proto, meaning original, and typus, meaning form or model. In a non-technical context, a prototype is an especially representative example of a given category. <br><br>In prototype-based programming, a prototype is an original object; new objects are created by copying the prototype. <br> Source: CoolInterview.com

Prototype describe the function interface to the compiler by giving details such as the number n type of arguments.Prototype is must in c++.<br><br>In C.<br><br>In main, we declare the (types) of properties,Ex.'int' in a similiar manner to the function definition.This is accomplished by,<br><br>int a,b,c;<br><br>and is called function prototyoe. A function prototype specifies the type of value returned by the function,the name of function and the type(s) of arguments expected by the function. this enables the compiler to check that,when the function is used, the correct number and the types of arguments are supplied. Source: CoolInterview.com

Prototype is nothing but simply a statement in which we define the return type and which type of argument any function will be take,define.Remember one thing it is always define in starting of our program.<br>It is helpful for compiler,when function actually call in our program. Source: CoolInterview.com

prototype is nothing but the function declaration.how compiler stores its prototype internally.Lets consider a function Add with two int arguments,the C compiler is going to store this value something like Add, but C++ compiler will stores this value something like Add_2_int_int,thats why c++ compiler allows overloading ,though function name is same as it arguments changes it store as diggerent prototype or function signature. Source: CoolInterview.com

The prototype describes the function interface to the compiler by giving detalis such as the number and type of arguments and the type of return values. Source: CoolInterview.com

Can somebody tell the exact usage of function prototype. How exactly Compiler uses it. Most of the answers are about what is a function prototype and does not answer why they are required? Source: CoolInterview.com

Function declaration is called as the prototype in both c and c++




Regards,
Nicku
Source: CoolInterview.com

function prototype is nothing but a function declaration. in which what we have to do that in function initially. Source: CoolInterview.com

the prototype is nothing but a function declaration of what we have to do that function.same function name different data types of argument may pass.then the function is called function overloading. Source: CoolInterview.com

Prototype is just simply function declaration in C and C++. Source: CoolInterview.com

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