Function inlining

Function inlining is an optimization technique used in programming where the code of a function is directly inserted into the places it is called, rather than going through the usual process of jumping to the function and back. This can make programs run faster because it eliminates the overhead of function calls. However, it can increase the size of the compiled program since the same code may be duplicated wherever the function is called. Overall, inlining helps improve performance, especially for small, frequently used functions.