static local variables and multiple charts running the same EA

A simple question ...

Are static local variables (defined in start) shared between the same EA running on multiple charts? Or are they kept independent to each version of the EA?

Some context: I want to run the same EA on multiple pairs (charts). The EA has flags to indicate different stages of a trade set-up. So i want these flags to be kept independent, i.e. unique for each chart and its EA. I'm looking for the simplest solution.

Thanks.

Variables are always internal to an EA>

By "variables" i'm assuming you mean static variables (hence answering the question). Otherwise, are not global variables shared between EA's running on different charts (to allow communication between them)?

What about external variables ... are they shared by all (and can be changed or reset) or are they local to each EA in which they are defined?

ronald answered your question correct, il try to complete it

extern means to display the setting in properties, so its like adjustable, remove extern and the setting is not available in the properties

remove the extern, and its gone, its retained in the ea only


now listen close
it is impossible for any ea or indicator to share a variable, unless it is a global variable

all variables are internal, they cannot be shared, unless you make it a global

global variables were created for a reason

the reason is, to fill the void where a ea is unreliable due to the effect of being reset, and to allow the ea to communicate with other ea's, and scripts, and indicators

if you need more help, just ask

Got it. Appreciated.