lightweight boost::bind

Question

I'm so sick of the pass-callback-data-as-void*-struct anti-pattern. Boost bind solves it nicely, but is an unacceptable dependency. What's a lightweight alternative? How would I write it myself as simply as possible?

Answer 1

First, I question your assertion that it's far too heavy for you to use.

Second, roll your own template, if you need to control the behavior.

Third, if you're afraid of rolling your own template, I question your ability to judge that boost::bind is too heavy for you to use.

Answer 2

Check out the fast delegate by Don Clugston. It's supposedly the fastest delegate you can find on most current platforms (compiles down to 2 assembly instructions.) Version 1.4+ gains some Boost.Bind compatibility.