Hi,
You need to declare put as a function, to avoid value restriction. For example:
1 2 3 4 5 6 7
let put x = fprintfn stdout x put "hello" put "%s %d" "hello" 1
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Let say, within a type, I defined some output stream, out, and I want to define a custom printf procedure that write to this stream. Something like:
type Foo() =
let out = ...
let put = fprintfn out
member v.one() =
put "hello"
member v.two() =
put "%s %d" "hello" 1
It seems that I cannot have both v.one() and v.two() at the same time. Is this related to the value restriction? How can I define a custom printf then?
Thanks.