Usefulness of the “inline” feature

Question

There\'s two things about inlining:

• The inline keyword will be ignored if the compiler determines that the function cannot be inlined.
• Th

Answer 1

There's a side effect of inline keyword when you are building shared library. Inlined functions are not exported into symbol table nor into library's binary. As a result inline keyword is crucial in aspect of shared libraries, since compiler won't be able to inline exported function. On the other hand library's inline function will be always inlined because it doesn't exist in the binary form of the library.