Variables with prefix ++


A variable with prefix as # is Local, with ## is Global, with + is AIV.
But what is the type of variable with prefix ++?


There’s only one limitation in Natural: + as a first character can only be used in globals an AIV. The second character doesn’t have a meaning. So there aren’t such limitations on ## and #, but of course you can set up own rules.


A + (plus) sign is allowed as the first character of a GDA or AIV field name.

There is no special meaning of ++, in fact you hit an error there, because the Natural documentation states

+    4E    Plus sign    Only allowed as the first character