On Tue, Jul 18, 2023 at 3:58 PM Jean Abou Samra <j...@abou-samra.fr> wrote:
> Hi Trevor, > > In Scheme, the = function is for comparing numbers, and nothing else. For > colors, you want equal? . > > > ~ $ guile2.2 > GNU Guile 2.2.7 > Copyright (C) 1995-2019 Free Software Foundation, Inc. > > Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'. > This program is free software, and you are welcome to redistribute it > under certain conditions; type `,show c' for details. > > Enter `,help' for help. > scheme@(guile-user)> (= 1 2) > $1 = #f > scheme@(guile-user)> (= 1 1) > $2 = #t > scheme@(guile-user)> (= 1 1.0) > $3 = #t > scheme@(guile-user)> (= 'a 'b) > <unnamed port>:4:0: In procedure =: Wrong type argument in position 1: a > > Entering a new prompt. Type `,bt' for a backtrace or `,q' to continue. > scheme@(guile-user) [1]> ,q > scheme@(guile-user)> (equal? 1 2) > $4 = #f > scheme@(guile-user)> (equal? 1 1) > $5 = #t > scheme@(guile-user)> (equal? 1 1.0) > $6 = #f > scheme@(guile-user)> (equal? 'a 'b) > $7 = #f > > Hi Jean, Thank you so much; exactly what I needed to know. Trevor. -- Trevor Bača www.trevorbaca.com soundcloud.com/trevorbaca
