What is a function prototype in C++?

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function prototype is a declaration of the function that informs the program about the number and kind of parameters, as well as the type of value the function will return. One incredibly helpful aspect of C++ functions is function prototyping.
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Experienced Computer trainer having worked in IT sector for 20 years.

A function prototype in C++ informs the compiler about the intention to use a function, along with its return type, parameters, and name. It is separate from the actual definition of the function. Syntax: returnType functionName(parameterType1 parameterName1, parameterType2 parameterName2, ...);
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A function prototype in C++ informs the compiler about the intention to use a function, along with its return type, parameters, and name. It is separate from the actual definition of the function. Syntax: returnType functionName(parameterType1 parameterName1, parameterType2 parameterName2, ...); read less
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