On 2 March 2014 17:00, Matt Gushee <m...@gushee.net> wrote: > > Does this mean that I am loading the module wrong? > > No. The numbers egg redefines all the standard arithmetic 'operators' > (quotes because, as you are probably aware, they are really functions > that just happen to be represented with the symbols we typically call > operators) to work with large integers, rationals, and complex > numbers. I think the main reason for the warnings is to make you aware > of unintentional naming conflicts, but in this case the redefinitions > are deliberate and should not cause any errors. >
Ok. Does this also mean that there is no way to suppress these messages (without also suppressing a similar message if I accidentally redefine something I shouldn't)? > > Incidentally, what is the difference between (require-extension xyz) and > > (use xyz)? Which one should I use? > > If I'm not mistaken they are completely equivalent in Chicken Scheme. > 'require-extension' is conformant with SRFI-55 > (http://srfi.schemers.org/srfi-55/srfi-55.html), so in principle it is > more portable. However, according to > <http://srfi.schemers.org/srfi-implementers.html>, only 6 Scheme > implementations support SRFI-55, so I'm not sure that gives you much > of an advantage. > Ok. Thanks. I don't think I care about SRFI-55 because presumably Scheme dialects will gradually move to R7RS and we'll all write (import xyz) instead. Cheers, Daniel. -- When an engineer says that something can't be done, it's a code phrase that means it's not fun to do.
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