How to verify that a string, or a struct with only string properties, is initialised or not, inside of a mapping?
According to the docs, it means checking that the element of the mapping is at its 0-...
I have the following statements:
Voter sender = voters[msg.sender];
if (!sender || sender.voted) throw;
I'm new to solidity, so I might not be aware of how (or if) coercion works.
As I found out in ...