How much overhead is there in calling a function in C++?

Question

A lot of literature talks about using inline functions to \"avoid the overhead of a function call\". However I haven\'t seen quantifiable data. What is the actual overhead o

Answer 1

For very small functions inlining makes sense, because the (small) cost of the function call is significant relative to the (very small) cost of the function body. For most functions over a few lines it's not a big win.