mirror of
https://github.com/ashinn/chibi-scheme.git
synced 2025-05-19 05:39:18 +02:00
00691b64f1
Many still import (chibi), and as (scheme base) is somewhat more expensive to load at present these are changed to cond-expand. Many libraries also rely on (srfi 33), and these have been changed to a cond-expand first trying (srfi 60) where available. Also fixing a few portability concerns (duplicate imports of the same binding), and adding a few libraries missing from lib-tests.scm.
19 lines
626 B
Scheme
19 lines
626 B
Scheme
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(define-library (chibi iset optimize)
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(cond-expand
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(chibi (import (chibi) (srfi 9)))
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(else (import (scheme base))))
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(import (chibi iset base)
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(chibi iset iterators)
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(chibi iset constructors))
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(cond-expand
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((library (srfi 60)) (import (srfi 60)))
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(else
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(import (srfi 33))
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(begin
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(define (%mask size) (bitwise-not (arithmetic-shift -1 size)))
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(define (extract-bit-field size position n)
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(bitwise-and (%mask size) (arithmetic-shift n (- position)))))))
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(include "optimize.scm")
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(export
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iset-balance iset-balance! iset-optimize iset-optimize! iset->code))
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