Example-macros.md

@@ -2,7 +2,7 @@ Links to some example macros. If you've written a cool macro and want to share p
 
 Note that these gists aren't necessarily kept up to date and might not work with the current version of sweet.js.
 
-* [C-style assert() function](https://gist.github.com/TooTallNate/baa25c0a58b7bd181bab)
+* [C-style assert() function](https://gist.github.com/TooTallNate/baa25c0a58b7bd181bab) - No longer working
 * [haskell style do-notation](https://gist.github.com/3831514) (update for v0.3.x [here](https://gist.github.com/Nami-Doc/8230304))
 * [fragment of scheme](https://gist.github.com/3854258) (update for v0.3.x [here](https://gist.github.com/Nami-Doc/8230315))
 * [var destructuring](https://gist.github.com/grncdr/4554165)
@@ -29,3 +29,4 @@ Note that these gists aren't necessarily kept up to date and might not work with
 * [sweetreaction](https://github.com/myfreeweb/sweetreaction) macros for the React library
 * [tail call 'optimization'](https://gist.github.com/J-Chaniotis/4d4f516de7bd0acd38a8)
 * [JSHint-clean array/object iterators & array comprehensions](https://gist.github.com/09d7fb45cd510f37b70f)
+* [constexpr - evaluate expressions at compile time](https://gist.github.com/natefaubion/f4be4c8531ef45de87b4)