In a function header, you must furnish the following:
- The name of the function.
- The data type of the return value.
- The data type of the parameters.
- The names of parameter variables.
<h3>What is a Function header?</h3>
A function header may be defined as a set of instructions that includes the name of the function that conveys to us what type of data it expects to respond to and the type of data it will return back to the calling function or program.
It will significantly mention all sorts of instructions like the compiler, the parameters, return value type, parameters of the variables, etc.
Therefore, the body of the functional header comprises all instructions that should be executed within a specific interval of time.
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