Usefulness of const (C++)

Question

I\'m a const fiend, and I strive to make everything as const as possible.

I\'ve tried looking at various dissassembly outputs from const and non const versions of fu

Answer 1

As far as I know, the only effect of marking a function const is to allow the function to be called on a const object. There's no optimization benefit.

Herb Sutter has an article which discusses const and optimization in depth:

• http://www.gotw.ca/gotw/081.htm

The one area that const is useful at the machine level is when applied to data - const data might be able to be placed in non-writable memory.