32 lines
772 B
Scheme
32 lines
772 B
Scheme
;;; SUM1 -- One of the Kernighan and Van Wyk benchmarks.
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(library (r6rs-benchmarks sum1)
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(export main)
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(import (r6rs) (r6rs arithmetic flonums) (r6rs-benchmarks))
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(define inport #f)
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(define (sumport port sum-so-far)
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(let ((x (read port)))
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(if (eof-object? x)
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sum-so-far
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(sumport port (fl+ x sum-so-far)))))
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(define (sum port)
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(sumport port 0.0))
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(define (go)
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(set! inport (open-input-file "rn100"))
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(let ((result (sum inport)))
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(close-input-port inport)
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result))
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(define (main . args)
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(run-benchmark
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"sum1"
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sum1-iters
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(lambda (result) (and (fl>=? result 15794.974999999)
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(fl<=? result 15794.975000001)))
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(lambda () (lambda () (go))))))
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