Do inline functions improve performance?

A function when defined as INLINE, the code from the function definition is directly copied into the code of the calling function.

- It avoids the overhead of calling the actual function. This is because the complier performs and inline expansion which eliminates the time overhead when a function is called.

- Reduces space as no separate set of instructions in memory is written.

Do inline functions improve performance? Explain.

Inline functions behave like macros. When an inline function gets called, instead of transferring the control to the function, the call gets substituted with the function code. Thus this saves time and improves performance.