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author | Bryan Newbold <bnewbold@robocracy.org> | 2017-02-20 00:05:38 -0800 |
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committer | Bryan Newbold <bnewbold@robocracy.org> | 2017-02-20 00:05:38 -0800 |
commit | 64f037d91e0c9296dcaef9a0ff3eb33b19a2ed34 (patch) | |
tree | 1b23b8e8005328194e2fb4bf653806c85050933f /hash.scm | |
parent | 5bea21e81ed516440e34e480f2c33ca41aa8c597 (diff) | |
download | slib-64f037d91e0c9296dcaef9a0ff3eb33b19a2ed34.tar.gz slib-64f037d91e0c9296dcaef9a0ff3eb33b19a2ed34.zip |
Import Upstream version 3a5upstream/3a5
Diffstat (limited to 'hash.scm')
-rw-r--r-- | hash.scm | 37 |
1 files changed, 19 insertions, 18 deletions
@@ -17,24 +17,6 @@ ;promotional, or sales literature without prior written consent in ;each case. -(define (hash:hash-symbol sym n) - (hash:hash-string (symbol->string sym) n)) - -;;; This can overflow on implemenatations where inexacts have a larger -;;; range than exact integers. -(define hash:hash-number - (if (provided? 'inexact) - (lambda (num n) - (if (integer? num) - (modulo (if (exact? num) num (inexact->exact num)) n) - (hash:hash-string-ci - (number->string (if (exact? num) (exact->inexact num) num)) - n))) - (lambda (num n) - (if (integer? num) - (modulo num n) - (hash:hash-string-ci (number->string num) n))))) - (define (hash:hash-string-ci str n) (let ((len (string-length str))) (if (> len 5) @@ -57,6 +39,25 @@ h))))) (define hash:hash-string hash:hash-string-ci) + +(define (hash:hash-symbol sym n) + (hash:hash-string (symbol->string sym) n)) + +;;; This can overflow on implemenatations where inexacts have a larger +;;; range than exact integers. +(define hash:hash-number + (if (provided? 'inexact) + (lambda (num n) + (if (integer? num) + (modulo (if (exact? num) num (inexact->exact num)) n) + (hash:hash-string-ci + (number->string (if (exact? num) (exact->inexact num) num)) + n))) + (lambda (num n) + (if (integer? num) + (modulo num n) + (hash:hash-string-ci (number->string num) n))))) + ;@ (define (hash obj n) (let hs ((d 10) (obj obj)) |