Pure functions in D

[bearophile]

Regarding the pure function topic: is it possible to have, just at debug time, the possibility to add special debugging printing statements into pure functions? :-)
Maybe now I am asking something silly... because the order of their prints and the number of times such function is called isn't defined by the compiler, and it may even change.
Another possible way to debug is for the programmer to temporary remove the "pure" statement(s), add some debugging writefln/putr/stdios, compile, run, see the output, put the "pure"(s) back, etc, etc... :-)

Bye,
bearophile