Batteries user guide : BatIMap.Infix

# Module BatIMap.Infix

    module Infix: sig .. end

Infix operators over a `BatIMap`

    val (-->) : 'a BatIMap.t -> int -> 'a

`map-->key` returns the current binding of `key` in `map`, or
Raises `Not_found` if no such binding exists. Equivalent to `find key map`.

    val (<--) : 'a BatIMap.t -> int * 'a -> 'a BatIMap.t

`map<--(key, value)` returns a map containing the same bindings as `map`, plus a binding of `key` to `value`. If `key` was already bound in `map`, its previous binding disappears. Equivalent to `add key value map`

Important warning: `BatIMap.add` takes an optional argument, `eq` that is missing in this operator `<--`. As a consequence, using `<--` implies the use of Pervasives.(==) as comparison function.