"functional" programming in Ada

["Alejandro R. Mosteo" <alejandro@mosteo.com>]

In a recent project I've started using in full if/case expressions and 
expression functions... and I'm a bit scared at the amount of use I have 
for them. I'm using these constantly.

Pros: purely recursive functions are really fun to write. If/case 
expressions, used sparingly, do help a lot in having constant 
declarations in local scopes. I'm writing more code in declarative parts.

Cons: the temptation of writing function bodies in the spec is too big. 
At least I try to keep them in the private part, but I've found myself 
trying to force an expression function just to avoid a package body.

Care to share your experiences?

Álex.