developer-roadmap/roadmaps/c/content/basic-functions@I5qOTKJFzAYoLMBiReGdX.md

Basic Functions

A basic function definition in C specifies a return type, a name, a parameter list, and a body containing the code to execute, for example int add(int a, int b) { return a + b; }. If a function does not return a value, its return type is declared as void. Function prototypes, declarations without a body, let functions be used before their full definition appears later in the file.