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Share variable between two modules
f#

Hello, group

Does anyone have experience to share a variable between two modules. For example,

ModuleA, B, and C. A want to leave some message for C and it can put it in a mutable variable in B; C and read the message and clear the message.

Is that possible to do it in F#?

Thanks

.

It seems you need the ref type, which is defined in the F# core libraries. Example:

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module B =

    let state = ref 0

module A =

    let setTo i = B.state := i
  
module C =
    open B

    let read() = !state
    
    let clear() = state := 0
By on 4/22/2009 4:04 AM ()

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