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[Caml-list] Calling a function with a self-defined type as argument
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Date: -- (:)
From: Dimitri Ara <dimitri@n...>
Subject: Re: [Caml-list] Calling a function with a self-defined type as argument
Oliver Bandel <oliver@first.in-berlin.de> a écrit :

> (*
>    let _ = x Line "h0oifdaji oi" ;;
>    This last one does not work: => "This function is applied to too many arguments"
> 
>    let _ = x Line( "reuruhjf" ) ;;
>    This last one does not work: => "This function is applied to too many arguments"
> 
>    But it works in this way:
>    let _ = x (Line "reuruhjf") ;;
> 
>    WHY?         (why *only* that?)
>   
>    At least the second example (with parantheses around the
>    Line's arguments) should work...?!  
> *)

Because :

(1) application is left associative.

Thus `f x y' means `(f x) y' and
     `x Line ""' means `(x Line) ""'.

(2) parentheses don't delimit the arguments of a function or a
    constructor but only fix the precedence of an expression.

Thus f x (y) means f x y and
     `x Line ("")' means `x Line ""'.
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