l...@gnu.org (Ludovic Courtès) writes:
> Hi,
>
> Andy Wingo <wi...@pobox.com> writes:
>
>> What is a #y vector? Does anyone know?
>
> No idea. Where does it come from?
>
> Ludo’.
>From the error message it is a generalized vector, which no longer
exists. What seems to be wanted is a bitvector. There does not
seem to be a literal for a bitvector although its printed like:
#*00110101000
Maybe something like:
diff --git a/src/math/primes.scm b/src/math/primes.scm
index 9873ae4..43745e9 100644
--- a/src/math/primes.scm
+++ b/src/math/primes.scm
@@ -103,7 +103,7 @@ being labelled prime) is @code{(expt 2 (- prime:trials))}."
(or (null? lst) (and (= 1 (gcd n (car lst))) (mapf (cdr lst)))))))
(define prime:prime-sqr 121)
(define prime:products '(105))
-(define prime:sieve #y(0 0 1 1 0 1 0 1 0 0 0))
+(define prime:sieve (bitvector #f #f #t #t #f #t #f #t #f #f #f))
(letrec ((lp (lambda (comp comps primes nexp)
(cond ((< comp (quotient most-positive-fixnum nexp))
(let ((ncomp (* nexp comp)))
@@ -112,9 +112,9 @@ being labelled prime) is @code{(expt 2 (- prime:trials))}."
(next-prime nexp (cons ncomp comps)))))
((< (quotient comp nexp) (* nexp nexp))
(set! prime:prime-sqr (* nexp nexp))
- (set! prime:sieve (make-uniform-vector nexp #\nul 0))
+ (set! prime:sieve (make-bitvector nexp #f))
(for-each (lambda (prime)
- (uniform-vector-set! prime:sieve prime 1))
+ (bitvector-set! prime:sieve prime #t))
primes)
(set! prime:products (reverse (cons comp comps))))
(else
@@ -132,7 +132,7 @@ being labelled prime) is @code{(expt 2 (- prime:trials))}."
There is a slight chance, @code{(expt 2 (- prime:trials))}, that a
composite will return @code{#t}."
(set! n (abs n))
- (cond ((< n (uniform-vector-length prime:sieve)) (positive?
(uniform-vector-ref prime:sieve n)))
+ (cond ((< n (bitvector-length prime:sieve)) (bitvector-ref prime:sieve n))
((even? n) #f)
((primes-gcd? n prime:products) #f)
((< n prime:prime-sqr) #t)
There are still other issues with guile-lib with 4 of 25 tests failing.
I have been looking at them as a background task.
--
Barry Fishman
