Abdulaziz Ghuloum <[EMAIL PROTECTED]> writes: > Page 44 of r593rs-lib says about (fxarithmetic-shift fx1 fx2): > > If (* fx1 (expt 2 fx2)) is a fixnum, that fixnum is returned. > Otherwise, an exception [...] is raised. > > Is the intension that (fxarithmetic-shift 5 -2) must signal an error? > Or was the above a typo? Maybe it should be corrected to be: > > If (floor (* fx1 (expt 2 fx2))) is a fixnum, that fixnum is [...]
I think it's worse, it needs to be (inexact->exact (floor (* fx1 (expt 2 fx2)))) :-) > Also, at the same paragraph, there is a mention of a "fixnum-" > procedure that was dropped at some point. Should change to "fx-". Fixed. Thanks! > Also, is there a good reason for restricting the range of the second > argument to be less than (fixnum-width)? Well, if that weren't there, you'd get an exception anyway, except for 0, no? -- Cheers =8-} Mike Friede, Völkerverständigung und überhaupt blabla _______________________________________________ r6rs-discuss mailing list [email protected] http://lists.r6rs.org/cgi-bin/mailman/listinfo/r6rs-discuss
