Increment value in F#

Question

Maybe it\'s too simple thing to do, but I can\'t find any answer in the web
I\'m try to Increment value in F# (like count++ in C#).
I don\'t want to use

Answer 1

You can't simulate a postincrement operator but you can do preincrement

let inline (+=) (x : byref<_>) y = x <- x + y

let mutable a = 0
&a += 1

or

let inline incv (x : byref<_>) = x <- x + LanguagePrimitives.GenericOne; x

let mutable b = 0
incv &b