Thanks, Vincent.
I didn't know traces had to be in the program itself.
Michael
From: Vincent St-Amour
To: michael rice
Cc: Vincent St-Amour ; Racket Users
Sent: Monday, October 10, 2011 1:49 PM
Subject: Re: [racket] Trace rejects set!
At Mon, 10 Oct
At Mon, 10 Oct 2011 10:31:39 -0700 (PDT),
michael rice wrote:
>
> Welcome to DrRacket, version 5.1.3 [3m].
> Language: racket; memory limit: 128 MB.
> > (trace next-leaf-generator)
> set!: cannot modify a constant: next-leaf-generator
Try adding `(trace next-leaf-generator)' to the program itself
At Mon, 10 Oct 2011 10:09:49 -0700 (PDT),
michael rice wrote:
> I'm looking at some old Scheme code and find that the code still
> works under (#lang racket) but trace is unhappy with the use of set!
> in the traced function.
>
> set!: cannot modify a constant: next-leaf-generator
I added `(trac
I'm looking at some old Scheme code and find that the code still works under
(#lang racket) but trace is unhappy with the use of set! in the traced
function.
set!: cannot modify a constant: next-leaf-generator
I also tried (#lang r5rs) but it's unhappy with my require.
(require racket/trac
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