When should I use __forceinline instead of inline?

Question

Visual Studio includes support for __forceinline. The Microsoft Visual Studio 2005 documentation states:

The __forceinline keyword overrides the co

Answer 1

There are several situations where the compiler is not able to determine categorically whether it is appropriate or beneficial to inline a function. Inlining may involve trade-off's that the compiler is unwilling to make, but you are (e.g,, code bloat).

In general, modern compilers are actually pretty good at making this decision.