Függvényhívásokra

Függvényhívásokra refers to the act of invoking or executing a function within a computer program. Functions are reusable blocks of code designed to perform a specific task. When a function is called, the program's execution flow jumps to the location of the function's code, executes the instructions within it, and then, in most cases, returns to the point where it was called.

During a function call, parameters may be passed to the function. These parameters are values or variables that provide input to the function, allowing it to operate on different data each time it is invoked. The function then uses these parameters to perform its designated operation. After completing its task, a function can optionally return a value back to the calling code. This returned value can be used for further calculations or operations.

Function calls are fundamental to structured programming, enabling modularity, code reusability, and the organization of complex programs into smaller, manageable units. Without function calls, programs would be monolithic and difficult to maintain. The process involves managing the program's state, including local variables and the return address, typically using a call stack.