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Fix fixnum-range changes in R6RS fixnum bitops

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* module/rnrs/arithmetic/fixnums.scm (fxcopy-bit, fxbit-field)
  (fxcopy-bit-field, fxarithmetic-shift)
  (fxarithmetic-shift-left, fx-arithmetic-shift-right)
  (fxrotate-bit-field, fxreverse-bit-field): Enforce range on amount by
  which to shift.  Fixes #14917.
* test-suite/tests/r6rs-arithmetic-fixnums.test ("fxarithmetic-shift-left"):
  Update test to not shift left by a negative amount.
This commit is contained in:
Andy Wingo 2016-06-21 09:32:30 +02:00
parent 845c873acf
commit beea6302e0
2 changed files with 26 additions and 4 deletions
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2
test-suite/tests/r6rs-arithmetic-fixnums.test
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@ -202,7 +202,7 @@
(fx=? (fxarithmetic-shift -1 -1) -1))))
(with-test-prefix "fxarithmetic-shift-left"
(pass-if "simple" (fx=? (fxarithmetic-shift-left -6 -1) -3)))
(pass-if "simple" (fx=? (fxarithmetic-shift-left -6 1) -12)))
(with-test-prefix "fxarithmetic-shift-right"
(pass-if "simple" (fx=? (fxarithmetic-shift-right -6 1) -3)))