More Exceptional C++

Chapter 12. inline

Difficulty: 4

Contrary to popular opinion, the keyword inline is not some sort of magic bullet. It is, however, a useful tool when employed properly. The question is: When should you use it?

1. What does inline do?

2. Does making a function inline increase efficiency?

3. When and how should you decide to inline a function?

Solution

• 1. What does inline do?

Making a function inline directs the compiler that it may choose to place a copy of the function's code directly into each place the code is used. In the cases where the compiler does so, it avoids generating a function call.

• 2. Does making a function inline increase efficiency?

Not necessarily. ...