Web Reference: Jul 10, 2012 Β· The terms function declaration and function prototypes are often used interchangeably but they are different in the purpose and their meaning. Following are the major differences between the function declaration and function prototype in C: May 14, 2014 Β· A prototype declares to the compiler that you are using a particular function, so itβs called a function declaration . It also specifies properties of the function. For example, the first void in the prototype for the butler () function indicates that butler () does not have a return value. In computer programming, a function prototype is a declaration of a function that specifies the function's name and type signature (arity, data types of parameters, and return type), but omits the function body.
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