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[Caml-list] "changing" immutable record elements
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Date: 2004-05-14 (16:30)
From: Kenneth Knowles <kknowles@b...>
Subject: Re: [Caml-list] "changing" immutable record elements
On Fri, May 14, 2004 at 08:50:32AM -0700, David Fox wrote:
> Unless I am missing some core language feature, it seems to me that the 
> most awkward part of the language is constructing an expression that 
> represents a record with a single field modified:
> let set_field3 rec value =
>   match rec with
>       {field1=field1; field2=field2; field3=field3; field4=field4; 
> field5=field5} ->
>          {field1=field1; field2=field2; field3=value; field4=field4; 
> field5=field5}
> is there any prettier way of doing this?


let set_field3 rec value = {rec with field3 = value}


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