On Sat, Jul 12, 2014 at 4:03 PM, John Cowan <co...@mercury.ccil.org> wrote:
> Alex Shinn scripsit: > > > There are actually many implementations for which this is an error. > > Notably R6RS requires it to be an error. > > Not too many outside R6RS, actually: only RScheme, SXM, SigScheme, UMB, > Dfsch, Foment, Chibi. > > > Schemes typically use the name `add1' for this. > > This is only available (at least at the REPL) in Racket, Chicken, SISC, > Sizzle, Vicare, IronScheme, RScheme, SXM. > That's still a lot more than provide 1+ out of the box (do any other than Guile?). See <http://trac.sacrideo.us/wg/wiki/PlusOneEx> for details. > You tested the wrong thing - the original question was about 1+, then 1+x was brought up, not +1x. -- Alex
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