Oh, I see what happened: image=? is provided from lang/htdp-*, which I happened to not have not imported -- I was working in a Racket file that only imported 2htdp/image. And then I looked in the "Equality testing of images" section of the 2htdp/image documentation: http://docs.racket-lang.org/teachpack/2htdpimage.html#(part._.Equality_.Testing_of_.Images) and it didn't mention image=?, nor was it anywhere else on the page, while it does occur in the documentation of htdp/image: http://docs.racket-lang.org/teachpack/image.html#(def._((lib._htdp/image..rkt)._image~3d~3f))
So, yes, maybe image=? should be re-exported from 2htdp/image, or at least mentioned/linked to in the section about equality of images. --- nadeem On Sun, Aug 29, 2010 at 2:58 PM, Robby Findler <[email protected]> wrote: > image=? seems to work okay to me. Is there some misleading > documentation or something somewhere that gives you the impression > that image=? doesn't work? > > Robby > > On Sun, Aug 29, 2010 at 12:58 PM, Nadeem Abdul Hamid <[email protected]> wrote: >> Is the idea to use equal? to compare images? Wouldn't it be better to >> define image=? just for the sake of uniformity? >> >> --- nadeem >> _________________________________________________ >> For list-related administrative tasks: >> http://lists.racket-lang.org/listinfo/dev >> > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
