ikarus/benchmarks/new/r6rs-benchmarks/ntakl.ss

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Added many benchmarks. added: benchmarks/new/r6rs-benchmarks/BUGS benchmarks/new/r6rs-benchmarks/array1.ss benchmarks/new/r6rs-benchmarks/bib benchmarks/new/r6rs-benchmarks/boyer.ss benchmarks/new/r6rs-benchmarks/browse.ss benchmarks/new/r6rs-benchmarks/cat.ss benchmarks/new/r6rs-benchmarks/conform.ss benchmarks/new/r6rs-benchmarks/cpstak.ss benchmarks/new/r6rs-benchmarks/ctak.ss benchmarks/new/r6rs-benchmarks/dderiv.ss benchmarks/new/r6rs-benchmarks/deriv.ss benchmarks/new/r6rs-benchmarks/destruc.ss benchmarks/new/r6rs-benchmarks/diviter.ss benchmarks/new/r6rs-benchmarks/divrec.ss benchmarks/new/r6rs-benchmarks/dynamic.src.ss benchmarks/new/r6rs-benchmarks/dynamic.ss benchmarks/new/r6rs-benchmarks/earley.ss benchmarks/new/r6rs-benchmarks/fibc.ss benchmarks/new/r6rs-benchmarks/fibfp.ss benchmarks/new/r6rs-benchmarks/gcbench.ss benchmarks/new/r6rs-benchmarks/gcold.ss benchmarks/new/r6rs-benchmarks/graphs.ss benchmarks/new/r6rs-benchmarks/lattice.ss benchmarks/new/r6rs-benchmarks/matrix.ss benchmarks/new/r6rs-benchmarks/maze.ss benchmarks/new/r6rs-benchmarks/mazefun.ss benchmarks/new/r6rs-benchmarks/mbrot.ss benchmarks/new/r6rs-benchmarks/nboyer.ss benchmarks/new/r6rs-benchmarks/nqueens.ss benchmarks/new/r6rs-benchmarks/ntakl.ss benchmarks/new/r6rs-benchmarks/paraffins.ss benchmarks/new/r6rs-benchmarks/parsing-test.sch benchmarks/new/r6rs-benchmarks/parsing.ss benchmarks/new/r6rs-benchmarks/perm9.ss benchmarks/new/r6rs-benchmarks/peval.ss benchmarks/new/r6rs-benchmarks/pi.ss benchmarks/new/r6rs-benchmarks/pnpoly.ss benchmarks/new/r6rs-benchmarks/ray.ss benchmarks/new/r6rs-benchmarks/todo-src/ benchmarks/new/r6rs-benchmarks/todo-src/README.flonum-benchmarks benchmarks/new/r6rs-benchmarks/todo-src/compiler.scm benchmarks/new/r6rs-benchmarks/todo-src/fft.scm benchmarks/new/r6rs-benchmarks/todo-src/fpsum.scm benchmarks/new/r6rs-benchmarks/todo-src/nbody.scm benchmarks/new/r6rs-benchmarks/todo-src/nucleic.scm benchmarks/new/r6rs-benchmarks/todo-src/primes.scm benchmarks/new/r6rs-benchmarks/todo-src/puzzle.scm benchmarks/new/r6rs-benchmarks/todo-src/quicksort.scm benchmarks/new/r6rs-benchmarks/todo-src/rn100 benchmarks/new/r6rs-benchmarks/todo-src/sboyer.scm benchmarks/new/r6rs-benchmarks/todo-src/scheme.scm benchmarks/new/r6rs-benchmarks/todo-src/simplex.scm benchmarks/new/r6rs-benchmarks/todo-src/slatex.scm benchmarks/new/r6rs-benchmarks/todo-src/slatex.sty benchmarks/new/r6rs-benchmarks/todo-src/smlboyer.scm benchmarks/new/r6rs-benchmarks/todo-src/string.scm benchmarks/new/r6rs-benchmarks/todo-src/succeed.scm benchmarks/new/r6rs-benchmarks/todo-src/sum.scm benchmarks/new/r6rs-benchmarks/todo-src/sum1.scm benchmarks/new/r6rs-benchmarks/todo-src/sumfp.scm benchmarks/new/r6rs-benchmarks/todo-src/sumloop.scm benchmarks/new/r6rs-benchmarks/todo-src/tail.scm benchmarks/new/r6rs-benchmarks/todo-src/tak.scm benchmarks/new/r6rs-benchmarks/todo-src/takl.scm benchmarks/new/r6rs-benchmarks/todo-src/temp.scm benchmarks/new/r6rs-benchmarks/todo-src/temp2.scm benchmarks/new/r6rs-benchmarks/todo-src/test.scm benchmarks/new/r6rs-benchmarks/todo-src/test.tex benchmarks/new/r6rs-benchmarks/todo-src/tfib.scm benchmarks/new/r6rs-benchmarks/todo-src/trav1.scm benchmarks/new/r6rs-benchmarks/todo-src/trav2.scm benchmarks/new/r6rs-benchmarks/todo-src/triangl.scm benchmarks/new/r6rs-benchmarks/todo-src/wc.scm modified: benchmarks/new/r6rs-benchmarks.ss benchmarks/results.Larceny-r6rs benchmarks/src/ntakl.scm
2007-06-13 07:17:57 -04:00
;;; NTAKL -- The TAKeuchi function using lists as counters,
;;; with an alternative boolean expression.
(library (r6rs-benchmarks ntakl)
(export main)
(import (r6rs) (r6rs-benchmarks))
(define (listn n)
(if (= n 0)
'()
(cons n (listn (- n 1)))))
(define l18 (listn 18))
(define l12 (listn 12))
(define l6 (listn 6))
(define (mas x y z)
(if (not (shorterp y x))
z
(mas (mas (cdr x) y z)
(mas (cdr y) z x)
(mas (cdr z) x y))))
; Part of the fun of this benchmark is seeing how well the compiler
; can understand this ridiculous code, which dates back to the original
; Common Lisp. So it probably isn't a good idea to improve upon it.
#;
(define (shorterp x y)
(and (not (null? y))
(or (null? x)
(shorterp (cdr x)
(cdr y)))))
; But SML/NJ runs this benchmark about 15 times as fast when the
; code above is rewritten as follows, so I tried it for Scheme also.
(define (shorterp x y)
(cond ((null? y) #f)
((null? x) #t)
(else
(shorterp (cdr x) (cdr y)))))
(define (main . args)
(run-benchmark
"ntakl"
takl-iters
(lambda (result) (equal? result '(7 6 5 4 3 2 1)))
(lambda () (lambda () (mas l18 l12 l6))))))